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Section 1 Theories of Intelligence
• Learning Goals:
– Students should be able to answer the following:
1: What arguments support intelligence as one general mental ability,
and what arguments support the idea of multiple distinct abilities?
2: How do Gardner’s and Sternberg’s theories of multiple
intelligences differ?
3: What makes up emotional intelligence?
2
Fact or Falsehood…
• 1. Research suggests that a common ingredient of expert performance in chess,
dancing, sports, and music is about a decade of intense daily practice.
• 2. Some rationally smart people have difficulty processing and managing social
information.
• 3. There is a modest positive correlation between brain size and intelligence score.
• 4. Highly educated people die with more synapses than their less-educated peers.
• 5. The concern with individual differences in intelligence is strictly a twentieth-
century American phenomenon.
• 6. Today’s Americans score higher on intelligence tests than Americans did in the
1930s
• 7. Among the intellectually disabled, males outnumber females by 50 percent. .
• 8. As adopted children grow older, their intelligence scores become more similar to
those of their biological parents than to those of their adoptive parents.
• 9. Recent research findings support a “Mozart effect,” that is, that having infants
listen to classical music boosts their cognitive ability.
• 10. Aptitude scores are a much better predictor of the college performance of Whites
than of Blacks.
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Use your brain #1
• You are participating in a race. You
overtake the second person. What
position are you in?
• Answer: If you answered that you are
first, then you are absolutely wrong!
If you overtake the second person
and you take his place, you are
second!
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Does Intelligence Predict
Success?
• Correlation between IQ scores and
occupational status is +.37
• Correlation between IQ scores and
income is +.21
• Correlation between IQ scores and
job performance is +.50
• What conclusion can you draw from
these findings?
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Ability
to
learn
from
experience,
acquire
knowledge
and
adapt
ntelligence
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Intelligence
• Intelligence is
socially
constructed
thus…
Can be
culturally
specific. According to this definition, are
both Einstein and Babe Ruth
intelligent?
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Intelligence
• Important Terminology:
• General Intelligence: factor that underlies specific
mental abilities and is therefore measured by every
task on an intelligence test. (combination of factors)
• Factor Analysis: a statistical procedure that identifies
clusters of related items (called factors) on a test;
used to identify difference dimensions of performance
that underlie a person’s total score.
• IQ (Intelligence Quotient)….we will break this down
later. Based on 100 point average. Sd of 15.
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Basic Theories of Intelligence
• Spearman’s Factor Theory
– Factor g (General) & Factor s (Specific)
– A single underlying intelligence correlated with specifics
– Developed Factor Analysis
• Thurstone’s Theory of Seven Primary Abilities
– 56 different tests that identified 7 primary abilities
– Examples: Word fluency, Perceptual Speed, Memory
– Later becomes the SAT
• Howard Gardner’s Mulitple Intelligence Theory
– Based on Savant Syndrome
– Has little research basis and statistical evidence
• Sternberg’s Triarchic Theory
– Creativity, Practical, Analytic
• Mayer and Salovey’s Emotional Intelligence Theory
– Also Known as EQ
– Made popular by Dan Goleman in 1995
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Spearman’s “G” Theory
S1
S2
S3
G
7.4 How do psychologists define intelligence?
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Charles Spearman and his g factor
• Used factor analysis
and discovered that
what we see as many
different skills is
actually one General
Intelligence.
• If you are good at one
subject you are usually
good at many others.
Jack Bauer is good
at torturing, bomb
defusing, shooting,
figuring out evil
plots and saving
the country. Is
there anything he
cannot do?
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Howard Gardner and Multiple
Intelligences
• Gardner believed that
there exists at least 7
different types of
intelligences.
1. Linguistic
2. Logical-mathematical
3. Spatial
4. Musical
5. Body-kinesthetic
6. Intrapersonal
7. Interpersonal
8. Naturalist
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Is Intelligence One General Ability or Several Specific Abilities?
Theories of Multiple Intelligences
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Is Intelligence One General Ability or Several Specific Abilities?
Theories of Multiple Intelligences
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Is Intelligence One General Ability or Several Specific Abilities?
Theories of Multiple Intelligences
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Is Intelligence One General Ability or Several Specific Abilities?
Theories of Multiple Intelligences
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Is Intelligence One General Ability or Several Specific Abilities?
Theories of Multiple Intelligences
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Is Intelligence One General Ability or Several Specific Abilities?
Theories of Multiple Intelligences
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Is Intelligence One General Ability or Several Specific Abilities?
Theories of Multiple Intelligences
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Is Intelligence One General Ability or Several Specific Abilities?
Theories of Multiple Intelligences
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Is Intelligence One General Ability or Several Specific Abilities?
Theories of Multiple Intelligences
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Contemporary Intelligence Theories
Howard Gardner (1983, 1999) supports Thurstone’s idea that intelligence
comes in multiple forms. Gardner notes that brain damage may diminish
one type of ability but not others.
People with savant syndrome excel in abilities
unrelated to general intelligence.
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Savant
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Robert Sternberg and his Triarchic
Theory
• Most commonly accepted theory today.
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Sternberg’s Three Aspects of
Intelligence
Gardner Simplified
• Analytical (academic
problem solving).
• Creative (generating
novel ideas)
• Practical (required
for everyday tasks
where multiple
solutions exist).
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Goleman and his EQ
• Emotional
Intelligence
• Interpersonal and
intrapersonal
intelligences.
• Maybe EQ is a
better predictor
for future success
than IQ.
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Emotional Intelligence (EQ)
• First called social
intelligence.
• The ability to
perceive, express,
understand, and
regulate emotions.
• Some studies show
EQ to be a greater
predictor for future
success than IQ
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Emotional Intelligence:
Components
Component Description
Perceive emotion
Recognize emotions in faces,
music and stories
Understand emotion
Predict emotions, how they
change and blend
Manage emotion
Express emotions in different
situations
Use emotion
Utilize emotions to adapt or be
creative
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Use your brain #2
• You are participating in a race. If you
overtake the last person, then you
are...?
• Answer: If you answered that you are
second to last, then you are wrong
again. Tell me, how can you overtake
the LAST person?
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Intelligence Theories Review: Who Said
It?
1. “If I know you're very good in music, I can predict with just
about zero accuracy whether you're going to be good or bad in
other things.”
2. “Intelligence means a particular quantity derived from
statistical operations. Under certain conditions the score of a
person at a mental test can be divided into two factors, one of
which is always the same in all tests…”
3. “We define intelligence as the subset of social intelligence that
involves the ability to monitor one's own and others' feelings
and emotions, to discriminate among them and to use this
information to guide one's thinking and actions.”
4. “Well, first of all, we did lots of studies where we show practical
intelligence doesn't correlate with G. We have probably two
dozen studies that practical intelligence better predicts job
success than IQ.”
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Section 1 Theories of Intelligence
Reflect on Learning Goals
Learning Goals
1: What arguments support intelligence as one general mental ability, and what
arguments support the idea of multiple distinct abilities?
2: How do Gardner’s and Sternberg’s theories of multiple intelligences differ?
3: What makes up emotional intelligence?
Self-Rating Level of Understanding
4.0
I can…
•Identify and describe the terms associated with the learning goal questions.
•Explain the answer to the learning goal questions with specific details.
•Apply the main concepts of the learning goal to myself or other topics related
to the course.
★ 3.0 ★
I can…
•Identify and describe the terms associated with the learning goal questions.
•Explain the answer to the learning goal questions with specific details.
2.0
I can…
•Identify and describe the terms associated with the learning goal questions.
1.0 •I need help in understanding the learning goals!
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Section 2 Intelligence Findings
• Learning Goals:
– Students should be able to answer the following:
4: To what extent is intelligence related to brain
anatomy and neural processing speed?
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Is Intelligence Neurologically
Measurable?
Recent Studies indicate some correlation (about +.33)
between brain size and intelligence. As brain size decreases
with age, scores on verbal intelligence tests also decrease.
Gray matter volume is above average in people with high intelligence.
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Intelligence & the Brain
• Brain Anatomy
– Small positive correlation between
brain size and IQ
– Brain size decreases with age as does
verbal intelligence
• Brain Function
– Frontal Lobe contains workspace for
organizing information
• Perceptual Speed ★
– Those who perceive quickly tend to
score higher on intelligence tests
• Neurological Speed ★
– Those who score high on intelligence
tests tend to have faster brain
response times
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Example Reaction
Time Test for
Intelligence
How many green X’s?
X
X
X
V
F
V
V
F
V
V
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Einstein’s Brain
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Brain Function
Studies of brain functions show that people who score high on
intelligence tests perceive stimuli faster, retrieve information from
memory quicker, and show faster brain response times.
People with higher intelligence respond correctly and quickly to
the above question.
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Intelligence & Creativity
• Creativity is…
– The ability to produce original and
valuable ideas
– More divergent thinking (generating
multiple solutions to a problem
– Little correlation with intelligence past
120
– Stems from frontal lobe
• Components of Creativity
– Expertise ★
– Imaginative Thinking
– Adventuresome Personality ★
– Intrinsic Motivation ★
– Creative Environment (Think Google)
• Bottom Line
– Creativity & Intelligence are not linked
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2 minutes:
Think of as
many uses for
a paperclip as
you can
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Critical Thinking…
• Many schools subscribe to the idea that perceptual and
neurological speed are indicative of intelligence. These
schools assess students with timed tests, and students who
are identified as requiring special education are given extended
time for taking tests. This type of practice implicitly
communicates that schools equate processing speed with
intelligence.
• Do you think these practices are helpful or harmful to learning?
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Section 2 Intelligence Findings
Reflect on Learning Goals
Learning Goals
4: To what extent is intelligence related to brain
anatomy and neural processing speed?
Rating Student Evidence
4.0
Expert
I can teach someone else about intelligence and its
relationship to brain anatomy and neural processing
speed
3.0
Proficient
I can explain how intelligence and its relationship to
brain anatomy and neural processing speed works
2.0
Developing
I can identify terms associated with intelligence
and its relationship to brain anatomy and neural
processing speed, but need to review this concept
more.
1.0
Beginning
I don’t understand this concept and need help!
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Section 3 Assessing Intelligence and
Modern Intelligence
• Learning Goals:
– Students should be able to answer the following:
5: When and why were intelligence tests created?
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History of Intelligence Testing
• Sir Francis Galton
– Father of Behavior Genetics (coined term nature/nurture)
– First to document theories of intelligence through inheritance
• Alfred Binet & Theodore Simon ★
– Designed a test to identify student’s reasoning abilities and
place them into appropriate classes
– Measured “mental age” through reasoning abilities
• Lewis Terman ★
– Stanford Professor who modified Binet’s Test for American
Students (1916)
– Created the Stanford-Binet Intelligence Test
– Believed in Eugenics and want people tested for reproductive
purposes
• William Stern★
– Coined the Term Intelligence Quotient (IQ)
– Formula: Mental Age/Chronological Age (x) 100
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How do we Assess Intelligence?
• Alfred Binet and
Theodore Simon set out
to figure out a concept
called a mental age
(what a person of a
particular age should
know).
• They discovered that by
discovering someone’s
mental age they can
predict future
performance.
• Hoped they could use
test to help children,
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Origins of Intelligence
Testing
 Mental Age
 a measure of intelligence test
performance devised by Binet
 chronological age that most
typically corresponds to a given
level of performance
 child who does as well as the
average 8-year-old is said to have
a mental age of 8
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Origins of Intelligence
Testing
 Intelligence Quotient (IQ)
 defined originally the ratio of
mental age (ma) to chronological
age (ca) multiplied by 100
 IQ = ma/ca x 100)
 on contemporary tests, the
average performance for a
given age is assigned a score of
100
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Terman and his IQ Test
• Used Binet’s
research to
construct the
modern day IQ test
called the
Stanford-Binet
Test.
• IQ=Mental
age/Chronological
age X 100.
• A 8 year old has a
mental age of 10,
what is her IQ?
• A 12 year old has
the mental age of
9, what is his IQ?
• A boy has the
mental age of 10
and an IQ of 200,
how old is he?
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SBIQ
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Problems with the IQ Formula
• It does not really work well on adults, why?
then his IQ would be 50!!!!!!
If a 60 year old man
does as well as an average 30 year old
That makes no sense!!!!!
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Types of Tests
Aptitude
• Measure ability or
potential.
Achievement
• Tests that measure
what you have learned.
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Modern Intelligence Tests
• Stanford-Binet Intelligence Test
– Originally adapted by Lewis Terman
– In its 5th
revision and still in use today
• Army Alpha Test
– First developed during World War I by Robert Yerkes
– Considered the first mass distributed intelligence test
• Wechsler Intelligence Tests ★
– Wechsler Adult Intelligence Scale (WAIS) and WISC
– Subscales in include verbal and performance assessments
• Wonderlic Cognitive Abilities Test
– 12 minutes, 50 questions
– Short Business IQ tests that correlate well with intelligence
– Also used to scout NFL draft picks
• Internet IQ Tests
– Mensa.org
– Not good predictors of IQ
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Modern Tests of Mental
Abilities
• Wechsler Adult
Intelligence Scale
(WAIS) consists of
11 subtests and
cues us in to
strengths by
using…..
Factor
Analysis
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Wechsler Tests
• More common way
to give IQ
tests….does not use
the formula but
uses the same
scoring system.
• WAIS
• WISC
• WPPSI
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Assessing Intelligence: Sample
Items from the WAIS
From Thorndike and Hagen, 1977
VERBAL
General Information
Similarities
Arithmetic Reasoning
Vocabulary
Comprehension
Digit Span
PERFORMANCE
Picture Completion
Picture Arrangement
Block Design
Object Assembly
Digit-Symbol Substitution
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Wechler Adult Intelligence Scale
Army Alpha Test Sample (Yerkes)
1. A company advanced 6 miles and retreated 2 miles. How far was it then from its first
position?
2. A dealer bought some mules for $1,200. He sold them for $1,500, making $50 on each mule.
How many mules were there?
3. Thermometers are useful because
A. They regulate temperature
B. They tell us how warm it is
C. They contain mercury
4. A machine gun is more deadly than a rifle, because it
A. Was invented more recently
B. Fires more rapidly
C. Can be used with less training
5. For these next two items, examinees first had to unscramble the words to form a sentence,
and then indicate if the sentence was true or false.
a. happy is man sick always a
b. day it snow does every not
6. The next two items required examinees to determine the next two numbers in each
sequence.
a. 3 4 5 6 7 8
b. 18 14 17 13 16 12
7. A portion of the Army Alpha required examinees to solve analogies.
a. shoe — foot. hat — kitten, head, knife, penny
b. eye — head. window — key, floor, room, door
8. In these next two examples, examinees were required to complete the sentence by selecting
one of the four possible answers.
a. The apple grows on a shrub, vine, bush, tree
b. Denim is a dance, food, fabric, drink
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Sample Intelligence Test Questions
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Quick Section Assessment
1. According to the Stanford-Binet formula for an intelligence
quotient (IQ), the IQ of a ten-year-old child with a mental age of
eight and a half years is
A. 85
B. 95
C. 100
D. 105
E. 115
2. Alfred Binet’s efforts to measure intelligence were directed at
A. Testing the worth of various theoretical definitions
B. Operationally defining one theory of intelligence
C. Predicting children’s success in school
D. Selecting workers for successful job performance
E. Establishing the learning potential of French military recruits
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Section 3 Assessing Intelligence
and Modern Intelligence
Reflect on Learning Goals
Learning Goals
5: When and why were intelligence tests created?
Rating Student Evidence
4.0
Expert
I can teach someone else about with when
and how intelligence tests created.
3.0
Proficient
I can explain how with when and how
intelligence tests created.
2.0
Developing
I can identify terms associated with when
and how intelligence tests created, but need
to review this concept more.
1.0
Beginning
I don’t understand this concept and need
help!
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Section 4 Principles of Test
Construction
• Learning Goals:
– Students should be able to answer the following:
6: What’s the difference between aptitude and
achievement tests, and how can we develop and
evaluate them?
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Aptitude vs. Achievement Testing
• Aptitude Test ★
– Predict a New Skill
– Most predictive of aptitude of
elementary school age
children
• Achievement Test ★
– Measures what has been
learned
– Example: AP Psychology Test
The SAT: Aptitude or
Achievement?
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Basic Principles of Test Construction
• Standardization of Tests
– Making sure everyone administers the test in
the same way to make it fair.
– ‘Norming’ the Test ★
• Defining scores based on a pretested group
(compare scores)
• Has to be done every few years to keep scores valid
• Normal Distribution ★
– The Bell Curve or Normal Curve
– 68% of people fall between -1 and +1 standard
deviations of the mean
– 95% of people fall between -2 and +2 standard
deviations of the mean
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Normal “Bell” Curve
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Z-Score or standard deviationZ-Score or standard deviation
Sammi’s intelligence score is one standard deviation above the mean.
Approximately what percent of people did Sammi out-score on his intelligence test?
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The Flynn Effect
The Flynn effect is the substantial and long-sustained increase in both fluid
and crystallized intelligence test scores measured in many parts of the
world from roughly 1930 to the present day
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The Flynn Effect
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Principles of Test ConstructionPrinciples of Test Construction
• Reliability
– Are the scores consistent?
– Split-Half Reliability: Dividing the
test into two equal halves
(odds/evens) and assessing how
consistent the scores are.
– Test-Retest Reliability: Take the
test one day and then take it
again a few weeks later to
compare the scores.
– Inter-rater Reliability: Two people
observing the same behavior
should score it the same way
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Principles of Test ConstructionPrinciples of Test Construction
• Validity: Does the test
measure what it is suppose
to?
– Achievement/Classroom Tests
• Content Validity:
– Does the exam actually test what it is
suppose to?
– Example: A poorly designed physics
test has questions on it that were not
covered in class or by the textbook.
• Face Validity:
– On the surface, does the test appear
to measure the subject matter
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Principles of Test ConstructionPrinciples of Test Construction
Validity: Does the test measure what it is
suppose to?
–Aptitude/Psychological Measures
• Criterion-Related/Predictive Validity:
– Refers to the function of a test in predicting/relating to
a particular behavior
– Example: An aptitude test designed to predict if a
person will be a good pilot should correlate to pilot
performance scores
• Construct Validity:
– When measuring a construct like personality you
should correlate your results with a variety of different
measures to eliminate or confirm it works.
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Construct Validity ExampleConstruct Validity Example
68
Newly
Developed
Extraversion
Test
Social Introversion on MMPI
Social Discomfort Scale
Sociability Scale on the CPI
Intelligence Score on Wonderlic
Outgoingness scale on the MPI
-.73
-.82
+.78
+.91
-.03
AnimalI.Q.
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CreativityA.I.ProblemsConceptsCognition
I.Q.
UNRELIABLE &
INVALID
Visualizing Reliability & Validity
I.Q.
RELIABLE &
VALID
I.Q.
RELIABLE
BUT INVALID
AnimalI.Q.
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Section Assessment
1. A test that is labeled an achievement test is most likely to be
given to
A. predict an individual’s ability to succeed in a particular job
B. allow a student to be exempted from a college course
C. assess the mental age of a gifted eight-year-old
D. determine whether a person is an extrovert or an introvert
E. investigate an individual’s cognitive style
2. The performance of the group on which an IQ test is
standardized sets the
A. method of administration most suitable for the test
B. extent to which IQ is determined by environment
C. criteria for the diagnostic significance of intelligence
D. degree of validity of the IQ test
E. norms against which performance of later test takers can be
evaluated
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Section Assessment
In a normal distribution of a standardized
test, the mean is 85 with a standard
deviation of 10. Daria scores in the 98th
percentile. What is the approximate score
Daria received?
A)85
B)75
C)100
D)105
E)115
71
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Section Assessment
1. All of the following are reasons for requiring clearly specified
procedures for the administration and scoring of assessment measures,
such as standardized tests, EXCEPT to
A. allow comparisons among scores of various test takers
B. reduce the possible effects of extraneous variables on scores
C. increase the reliability and validity of the test scores
D. decrease the amount of time needed to administer the test
E. increase the objectivity of the score procedures used
2. In a normal distribution, approximately what percent of the scores
occur within one standard deviation above and below the mean?
A. 5%
B. 16%
C. 33%
D. 68%
E. 97%
72
AnimalI.Q.
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Section 4 Principles of Test
Construction
Reflect on Learning Goals
Learning Goals
6: What’s the difference between aptitude and achievement tests, and how
can we develop and evaluate them?
Rating Student Evidence
4.0
Expert
I can teach someone else about, the difference
between aptitude and achievement tests, In
addition to 3.0 , I can demonstrate applications and
inferences beyond what was taught
3.0
Proficient
I can explain, the difference between aptitude and
achievement tests with no major errors or
omissions.
2.0
Developing
I can identify terms associated the difference
between aptitude and achievement tests, but need
to review this concept more.
1.0
Beginning
I don’t understand this concept and need help!
AnimalI.Q.
GardnerIntelligence
HeredityTermanDelayBiasWechsler
CreativityA.I.ProblemsConceptsCognition
Section 5: The Dynamics of
Intelligence
• Learning Goals:
– Students should be able to answer the following:
7: How stable are intelligence scores over the life
span?
– 8: What are the traits of those at the low and high
intelligence extremes?
74
AnimalI.Q.
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Does Intelligence Change Over Time?
By age 3, a child’s
IQ can predict
adolescent IQ
scores.
Depends on the type
of intelligence,
crystallized or fluid.
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Intelligence: Stability vs. Change
• About age 7 intelligence stabilizes
• Habituation at age 2-7 months is an
early sign of intelligence
• Early readers tend to have higher
intelligence (early talkers do not)
• Scottish Longitudinal Study shows
that intelligence at age 11 still
correlates at age 77 (r = +.66)
• Flynn Effect Reasons:
– Increase in education
– Increase in technology
– Better nutrition
– Smaller family sizes (increased
individual attention)
76
AnimalI.Q.
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CreativityA.I.ProblemsConceptsCognition
Extreme Intelligences: Low End
• Mental Retardation/Intellectual Disability
– IQ of 70 or below
– AND difficulty adapting to normal
life
– About 75% are caused by unknown
environmental influences (Some causes
are F.A.S., infections, chromosomal
abnormalities such as down syndrome,
nutrition, and trauma)
– Most are Male
77
Because of the Flynn
Effect more people are
diagnosed as mentally
retarded, but more can
lead productive lives
AnimalI.Q.
GardnerIntelligence
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CreativityA.I.ProblemsConceptsCognition
Extreme Intelligences: Low End
• Mental Retardation/Intellectual Disability
– IQ of 70 or below
– AND difficulty adapting to normal
life
– About 75% are caused by unknown
environmental influences
– Most are Male
78
Because of the Flynn
Effect more people are
diagnosed as mentally
retarded, but more can
lead productive lives
AnimalI.Q.
GardnerIntelligence
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CreativityA.I.ProblemsConceptsCognition
Extreme Intelligences: Low End
AnimalI.Q.
GardnerIntelligence
HeredityTermanDelayBiasWechsler
CreativityA.I.ProblemsConceptsCognition
The Dynamics of Intelligence
AnimalI.Q.
GardnerIntelligence
HeredityTermanDelayBiasWechsler
CreativityA.I.ProblemsConceptsCognition
Willowbrook 
AnimalI.Q.
GardnerIntelligence
HeredityTermanDelayBiasWechsler
CreativityA.I.ProblemsConceptsCognition
Serbian Institutions 
AnimalI.Q.
GardnerIntelligence
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CreativityA.I.ProblemsConceptsCognition
Extreme Intelligences High End
• Gifted Intelligence (130 or above)
– Terman’s Longitudinal Study
• 1500 with IQ of 150 (Average)
• Well Adjusted
• Emotionally Stable
• Socially Mature
• Better Health
• Above average success in career
– Ellen’s Winner Study
• 180 or above
• Socially isolated
• Emotional issues
83
Sho Yano
Aced SATs at age 8
Graduated College age 12,
Doctor at age 21
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Extreme Intelligences High End
AnimalI.Q.
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Extreme Intelligences High End
AnimalI.Q.
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Learning Goals:
86
Rating Student Evidence
4.0
Expert
I can teach someone else about the
stability of intelligence scores over the life
span In addition to 3.0 , I can demonstrate
applications and inferences beyond what
was taught
3.0
Proficient
I can explain, the stability of intelligence
scores over the life span) with no major
errors or omissions.
2.0
Developing
I can identify terms associated the stability
of intelligence scores over the life span, but
need to review this concept more.
1.0
Beginning
I don’t understand this concept and need
help!
7: How stable are intelligence scores over the life span?
8: What are the traits of those at the low and high intelligence
extremes?
AnimalI.Q.
GardnerIntelligence
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Section 6 Genetic and Environmental
Influence on Intelligence
• Learning Goals:
– Students should be able to answer the following:
– 9: What does evidence reveal about hereditary
and environmental influences on intelligence?
87
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Genetic and Environmental Influences on
Intelligence
No other topic in psychology is so passionately followed as
the one that asks the question, “Is intelligence due to
genetics or environment?”
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Genetic Influences
 Heritability
 the proportion of variation among
individuals that we can attribute to genes
 variability depends on range of populations
and environments studied
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Heritability
AnimalI.Q.
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Heritability
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Heritability
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Heritability
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Heritability
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Heritability
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Heritability
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Adoption Studies
Adopted children show a marginal correlation in verbal ability to their adopted
parents.
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Environmental Influences in Intelligence
• Identical twins raised apart are slightly
less correlated in their intelligence scores
• Fraternal twins have more correlated
scores than ordinary siblings
• Early childhood neglect correlates with
lower intelligence scores
• Intelligence scores rise in the fall months
and decline in the summer months
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Schooling Effects
Schooling is an experience that pays dividends, which is reflected in
intelligence scores. Increased schooling correlates with higher
intelligence scores.
To increase readiness for schoolwork,
projects like Head Start facilitate leaning.
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Early Intervention Effects
Early neglect from caregivers leads children to develop a lack of
personal control over the environment, and it impoverishes their
intelligence.
Romanian orphans with minimal
human interaction are delayed in their development.
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Neglect on Intelligence: Genie Wiley 
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Learning Goal:
9: What does evidence reveal about hereditary and
environmental influences on intelligence?
102
Rating Student Evidence
4.0
Expert
I can teach someone else about what evidence
reveals about hereditary and environmental
influences on intelligence. In addition to 3.0 , I can
demonstrate applications and inferences beyond
what was taught
3.0
Proficient
I can explain, what evidence reveals about hereditary
and environmental influences on intelligence with no
major errors or omissions.
2.0
Developing
I can identify terms associated with what evidence
reveals about hereditary and environmental
influences on intelligence, but need to review this
concept more.
1.0
Beginning
I don’t understand this concept and need help!
AnimalI.Q.
GardnerIntelligence
HeredityTermanDelayBiasWechsler
CreativityA.I.ProblemsConceptsCognition
Section 7 Gender and Cultural
Differences and Testing Bias
• Learning Goals:
– Students should be able to answer the following:
10: How and why do gender and racial groups differ
in mental ability scores?
103
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The differences between men and women as they relate to
mental abilities.
1. Girls are better spellers
2. Girls are verbally fluent and have large vocabularies
3. Girls are better at locating objects
4. Girls are more sensitive to touch, taste, and color
5. Boys outnumber girls in counts of underachievement
6. Boys outperform at math problem solving, but under perform at math
computation
7. Women detect emotions more easily than men do
104
* Testosterone in the womb may increase visual spatial skills (like playing chess)
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Ethnic Similarities and Differences
1. Racial groups differ in their average
intelligence scores.
2. High-scoring people (and groups) are more
likely to attain high levels of education and
income.
To discuss this issue we begin with two disturbing
but agreed upon facts:
AnimalI.Q.
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Racial (Group) Differences
If we look at racial differences, white Americans score higher
in average intelligence than black Americans (Avery and
others, 1994). European New Zealanders score higher than
native New Zealanders (Braden, 1994).
White-Americans Black-Americans
Average IQ = 100 Average IQ = 85
Hispanic Americans
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Environmental Effects
Differences in intelligence among these groups are largely
environmental, as if one environment is more fertile in
developing these abilities than another.
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Reasons Why Environment Affects
Intelligence
1. Races are remarkably alike genetically.
2. Race is a social category.
3. Asian students outperform North American
students on math achievement and aptitude tests.
4. Today’s better prepared populations would
outperform populations of the 1930s on intelligence
tests.
5. White and black infants tend to score equally well
on tests predicting future intelligence.
6. Different ethnic groups have experienced periods of
remarkable achievement in different eras.
AnimalI.Q.
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CreativityA.I.ProblemsConceptsCognition
More possible explanations for why different ethnic groups
average different intelligence scores.
• Why do Asians outperform Whites
on math and aptitude tests?
• Why do Blacks, Native Americans
and Hispanics have slightly lower
intelligence scores than Whites?
– Reason # 1: Genetics and
Heritability
– Reason # 2: Socioeconomics
Disadvantage
– Reason # 3: Stereotype
Threat/Vulnerability
– Reason # 4: IQ Tests are Culturally
Bias
109
Why do we have
such stereotypes?
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CreativityA.I.ProblemsConceptsCognition
Reason # 1: Genetic and Heritability Components
• Some argue that the heritability of intelligence is about
60-80%, meaning that the variation of intelligence from
one person to another is more likely due to genetics
– This DOES NOT mean that you inherit 60-80% of your
intelligence from your parents!!!
– Some researchers see this to mean that genetics among
groups (like Blacks and Hispanics) play a role in
determining intelligence scores.
• HOWEVER-:
– Race is much more a social category and not biological
– White and black infants tend to score equally well on tests
predicting future intelligence.
– People raised in similar environments tend to have similar
test scores
110
Possible explanations for why different ethnic groups
average different intelligence scores.
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Reason # 2: Socioeconomics Disadvantages
• People who grow up in poorer
communities tend to:
– Have lesser nutrition and
doctor’s visits
– Have larger family sizes
– Be from single-parent
households
– Are exposed to fewer books
– Have less privacy to
concentrate on studying
– Attend poorer-quality schools
– May be influenced by crime and
drugs
112
Possible explanations for why different ethnic groups
average different intelligence scores.
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Reason # 3: Stereotype Threat/Vulnerability
• A stereotype threat is a self-confirming concern that
one will be evaluated based on a negative stereotype
• This phenomenon appears in some instances in
intelligence testing among African-Americans and
among women of all colors.
113
Possible explanations for why different ethnic groups
average different intelligence scores.
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Reason # 4: Culture Unfair IQ Testing
• Who creates most IQ tests?
• Do IQ tests measure knowledge more
than ability?
• Are questions culturally specific?
– Cup & Saucer, “L, el and ell”
• Hungarians and Italian immigrants of the
early 1900’s were seen as feeble-minded
because of low IQ test scores.
• Today’s tests are seen as unbiased
because they put more emphasis of
ability and are given in a variety of
languages
• How would you design a culturally
nonbiased test?
114
An example of
a culturally fair
IQ test
question
Possible explanations for why different ethnic groups
average different intelligence scores.
AnimalI.Q.
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Section Assessment
Research on stereotype threat indicates
that students might not do as well as
they can on a test if:
A. they are informed that people of their ethnicity, age,
or gender usually do not perform well on the test
B. the group taking the test is not ethnically diverse
C. they are forced to take a test that is know to have low
test-retest reliability
D. other students perceive them to be of a minority
ethnic group
E. the test does not have standardized administration of
scoring procedures
115
AnimalI.Q.
GardnerIntelligence
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CreativityA.I.ProblemsConceptsCognition
Learning Goal: How and why do gender and racial
groups differ in mental ability scores?
116
Rating Student Evidence
4.0
Expert
I can teach someone else about how and why
gender and racial groups differ in mental ability
scores. In addition to 3.0 , I can demonstrate
applications and inferences beyond what was taught
3.0
Proficient
I can explain, how and why gender and racial
groups differ in mental ability scoreswith no major
errors or omissions.
2.0
Developing
I can identify terms associated how and why gender
and racial groups differ in mental ability scores, but
need to review this concept more.
1.0
Beginning
I don’t understand this concept and need help!

Aguiar ap intelligence and testing 2 18

Editor's Notes

  • #4 1. T (p. 527)2. T (p. 528)3. T (pp. 529–530) 4. T (p. 530)5. F (p. 532) 6. T (p. 537) 7. T (p. 542) 8. T (p. 545) 9. F (p. 547) 10. F (p. 554)
  • #6 1, moderate 2, weak 3 strong
  • #7 As a socially constructed concept, intelligence varies from culture to culture. Thus, most psychol- ogists now define intelligence as the ability to learn from experience, solve problems, and use knowledge to adapt to new situations. To reify something is to view an abstract, immaterial concept as if it were a concrete thing. Thus, to reify IQ is to treat the intelligence quotient as if it were a fixed and objectively real trait, such as height, rather than as a score received on an intelligence test. In research studies, intelligence is whatever the intelligence test measures. This tends to be “school smarts.”
  • #11 Spearman’s Theory g factor – the ability to reason and solve problems, or general intelligence. s factor – the ability to excel in certain areas, or specific intelligence. Gardner’s Theory Multiple intelligences - ranging from verbal, linguistic, and mathematical to interpersonal and intrapersonal intelligence.
  • #12 Psychologists agree that people have specific abilities, such as verbal and mathematical aptitudes. However, they debate whether a general intelligence (g) factor runs through them all, as proposed by Charles Spearman. Factor analysis has identified several clusters of mental abilities, including verbal intelligence, spatial ability, and reasoning ability. Still, there seems to be a tendency for those who excel in one of the clusters to score well on others, as suggested by the results of L. L. Thurstone’s ranking of people’s primary mental abilities. Some psychologists today agree with Spearman’s notion that we have a common level of intelligence that can predict our abilities in all other academic areas.
  • #13 Evidence that brain damage may diminish one ability but not others, as well as studies of savant syndrome, led Howard Gardner to propose his theory of multiple intelligences. These include lin- guistic, logical-mathematical, musical, spatial, bodily-kinesthetic, intrapersonal, interpersonal, and naturalist.
  • #23 OBJECTIVE 3| Compare Gardner’s and Sternberg's theories of intelligence.
  • #24 OBJECTIVE 3| Compare Gardner’s and Sternberg's theories of intelligence.
  • #25 Robert Sternberg also proposes a triarchic theory of multiple intelligences in which he distinguishes among analytical (academic problem solving), practical, and creative intelligences.
  • #28 Distinct from academic
  • #29 intelligence is social intelligence, an aspect of which is emotional intelligence. The four components of emotional intelligence are (1) the ability to perceive emotions (to recognize them in faces, music, and stories), (2) to understand emotions (to predict them and how they change and blend), (3) to manage emotions (to know how to express them in varied situations), and (4) to use emotions to enable adaptive or creative thinking. Those who are emotionally smart often succeed in careers, marriages, and parenting where other academically smarter (but emotionally less intelligent) people fail. Critics of the idea of emotional intelligence argue that we stretch the idea of intelligence too far when we apply it to emotion.
  • #31 Gardner Spearman Mayer and Salovey Sternberg
  • #34 Several studies report a positive correlation (+.33) between brain size (adjusted for body size) and intelligence score. Moreover, as adults age, brain size and nonverbal intelligence test scores fall in concert. Some studies suggest that highly educated people die with more synapses. The direction of the relationship between brain size and intelligence remains unclear. Larger brain size may enable greater intelligence, but it is also possible that greater intelligence leads to experiences that exercise the brain and build more connections, thus increase its size. Or, some third factor may be at work. Some evidence suggests that highly intelligent people differ in their neural plasticity.
  • #35 People who score high on intelligence tests tend to retrieve information from memory more quick- ly. Research also suggests that the correlation between intelligence score and the speed of taking in perceptual information tends to be about +.3 to +.5. Those who perceive quickly are especially likely to score higher on tests based on perceptual rather than verbal problem solving. The brain waves of highly intelligent people register a simple stimulus, such as a flash of light, more quickly and with greater complexity. The evoked brain response also tends to be slightly faster when peo- ple with high intelligence rather than low intelligence scores perform a simple task, such as push- ing a button when an X appears on the screen. As yet, psychologists have no firm idea of why fast reactions on simple tasks should predict intelligence test performance.
  • #36 People who score high on intelligence tests tend to retrieve information from memory more quick- ly. Research also suggests that the correlation between intelligence score and the speed of taking in perceptual information tends to be about +.3 to +.5. Those who perceive quickly are especially likely to score higher on tests based on perceptual rather than verbal problem solving. The brain waves of highly intelligent people register a simple stimulus, such as a flash of light, more quickly and with greater complexity. The evoked brain response also tends to be slightly faster when peo- ple with high intelligence rather than low intelligence scores perform a simple task, such as push- ing a button when an X appears on the screen. As yet, psychologists have no firm idea of why fast reactions on simple tasks should predict intelligence test performance.
  • #38 Remote Associates Test
  • #39 Remote Associates Test
  • #43 The modern intelligence-testing movement started at the turn of the twentieth century when French psychologist Alfred Binet began assessing intellectual abilities. Together with Théodore Simon, Binet developed an intelligence test containing questions that assessed mental age and helped predict children’s future progress in the Paris school system. The test sought to identify French schoolchildren needing special attention. Binet and Simon made no assumption about the origin of intelligence.
  • #46 Lewis Terman believed that intelligence was inherited. Like Binet, he believed that his test, the Stanford-Binet, could help guide people toward appropriate opportunities. William Stern derived the intelligence quotient, or IQ, for Terman’s test. The IQ was simply a person’s mental age divided by chronological age multiplied by 100. During the early part of the twentieth century, intelligence tests were sometimes used in ways that, in hindsight, even their designers regretted— “documenting” a presumed innate inferiority of ethnic and immigrant groups not sharing an Anglo-Saxon heritage.
  • #47 Lewis Terman believed that intelligence was inherited. Like Binet, he believed that his test, the Stanford-Binet, could help guide people toward appropriate opportunities. William Stern derived the intelligence quotient, or IQ, for Terman’s test. The IQ was simply a person’s mental age divided by chronological age multiplied by 100. During the early part of the twentieth century, intelligence tests were sometimes used in ways that, in hindsight, even their designers regretted— “documenting” a presumed innate inferiority of ethnic and immigrant groups not sharing an Anglo-Saxon heritage.
  • #49 Aptitude refers to the capacity to learn, and thus aptitude tests are those designed to predict a per- son’s future performance. Achievement tests are designed to assess what a person has learned.
  • #50 Sample IQ Test Questions: http://www.intelligencetest.com/questions/spatial.htm Wonderlic test- quotient based on 100. Scores over 10 suggest literacy. Morris Claiborne – 4 (first-round pick in the 2012 NFL Draft, lowest score ever known by an NFL player) Guard and offensive tackles have highest average score of 23 and 26
  • #52 The Wechsler Adult Intelligence Scale (WAIS) is the most widely used intelligence test. David Wechsler developed a version for school-age children (the Wechsler Intelligence Scale for Children [WISC]), and another for preschool children.
  • #53 The WISC consists of 11 subtests and yields not only an overall intelligence score but also separate verbal comprehension, perceptual organization, working memory, and processing speed scores. Striking differences between these scores can pro- vide clues to cognitive strengths that a teacher or therapist might build on. Other comparisons can help clinicians identify a possible reading or language disability.
  • #55 Answers: 1) 4 miles; 2) 6 mules; 3) B; 4) B; 5) False (A sick man is always happy); 6) True (It does not snow every day); 7) 9, 10; 8) 15, 11; 9) Head; 10) Room; 11) Tree; 12) Fabric
  • #56 Use Psych Sim 5: Get Smart for more intelligence Test Question Examples
  • #58 A, C
  • #62 Because scores become meaningful only when they can be compared with others’ performance, they must be defined relative to a pretested group, a process called standardization. Obviously, the group on which a test is standardized must be representative of those who will be taking the test in the future. Standardized test results typically form a normal distribution, a bell-shaped pattern of scores that forms the normal curve. Most scores cluster around the average, and increasingly fewer are distributed at the extremes. Intelligence test scores form such a curve, but in the past several decades the average score has risen, a phenomenon known as the Flynn effect. The cause of this increase remains a mystery.
  • #63 Give Handout with bell curve
  • #64 The Flynn effect is the substantial and long-sustained increase in both fluid and crystallized intelligence test scores measured in many parts of the world from roughly 1930 to the present day. When intelligence quotient (IQ) tests are initially standardized using a sample of test-takers, by convention the average of the test results is set to 100 and their standard deviation is set to 15 or 16 IQ points. When IQ tests are revised, they are again standardized using a new sample of test-takers, usually born more recently than the first. Again, the average result is set to 100. However, when the new test subjects take the older tests, in almost every case their average scores are significantly above 100.
  • #66 Reliability refers to the extent to which a test yields consistent scores. Consistency may be assessed by comparing scores on two halves of the test (split-half), on alternative forms, or on test- retest. A test can be reliable but not valid.
  • #67 Validity refers to the extent to which a test measures or predicts what it is supposed to. Content validity is determined by assessing whether the test taps the pertinent behavior, or criterion. For example, road tests for a driver’s license should measure driving ability. Predictive validity is determined by computing the correlation between test scores and the criterion behavior. Aptitude tests have predictive validity if they can predict future achievement. The predictive power of apti- tude scores diminishes as students move up the educational ladder.
  • #71 1. B 2. E
  • #72 105
  • #73 1. D 2. D
  • #77 At one extreme of the normal distribution are people whose intelligence scores fall below 70. To be labeled as having an intellectual disability (formerly referred to as mental retardation), a child must have both a low test score and difficulty adapting to the normal demands of living independ- ently. Intellectual disability sometimes results from known physical causes, such as Down syn- drome, a disorder of varying severity that is attributed to an extra chromosome in the person’s genetic makeup. Most mentally challenged adults can, with support, live in mainstream society.
  • #78 At one extreme of the normal distribution are people whose intelligence scores fall below 70. To be labeled as having an intellectual disability (formerly referred to as mental retardation), a child must have both a low test score and difficulty adapting to the normal demands of living independ- ently. Intellectual disability sometimes results from known physical causes, such as Down syndrome, a disorder of varying severity that is attributed to an extra chromosome in the person’s genetic makeup. Most mentally challenged adults can, with support, live in mainstream society.
  • #79 At one extreme of the normal distribution are people whose intelligence scores fall below 70. To be labeled as having an intellectual disability (formerly referred to as mental retardation), a child must have both a low test score and difficulty adapting to the normal demands of living independ- ently. Intellectual disability sometimes results from known physical causes, such as Down syndrome, a disorder of varying severity that is attributed to an extra chromosome in the person’s genetic makeup. Most mentally challenged adults can, with support, live in mainstream society.
  • #80 At one extreme of the normal distribution are people whose intelligence scores fall below 70. To be labeled as having an intellectual disability (formerly referred to as mental retardation), a child must have both a low test score and difficulty adapting to the normal demands of living independ- ently. Intellectual disability sometimes results from known physical causes, such as Down syndrome, a disorder of varying severity that is attributed to an extra chromosome in the person’s genetic makeup. Most mentally challenged adults can, with support, live in mainstream society.
  • #84 At the other extreme are the “gifted.” Contrary to the popular myth that they are frequently malad- justed, research suggests that high-scoring children are healthy, well adjusted, and academically successful. Controversy surrounds “gifted child” programs in which the “gifted” are segregated and given academic enrichment not available to the masses. Critics note that tracking by aptitude sometimes creates a self-fulfilling prophecy: Those implicitly labeled “ungifted” can be influenced to become so. Denying lower-ability students opportunities for enriched education can widen the achievement gap between ability groups and increase their social isolation from one another.
  • #85 At the other extreme are the “gifted.” Contrary to the popular myth that they are frequently malad- justed, research suggests that high-scoring children are healthy, well adjusted, and academically successful. Controversy surrounds “gifted child” programs in which the “gifted” are segregated and given academic enrichment not available to the masses. Critics note that tracking by aptitude sometimes creates a self-fulfilling prophecy: Those implicitly labeled “ungifted” can be influenced to become so. Denying lower-ability students opportunities for enriched education can widen the achievement gap between ability groups and increase their social isolation from one another.
  • #86 At the other extreme are the “gifted.” Contrary to the popular myth that they are frequently malad- justed, research suggests that high-scoring children are healthy, well adjusted, and academically successful. Controversy surrounds “gifted child” programs in which the “gifted” are segregated and given academic enrichment not available to the masses. Critics note that tracking by aptitude sometimes creates a self-fulfilling prophecy: Those implicitly labeled “ungifted” can be influenced to become so. Denying lower-ability students opportunities for enriched education can widen the achievement gap between ability groups and increase their social isolation from one another.
  • #90 heritability refers to the extent to which differences among people are attrib- utable to genes. To say that the heritability of intelligence is 50 percent does not mean that half of an individual’s intelligence is inherited. Rather, it means that we can attribute to heredity 50 per- cent of the variation of intelligence among those studied.
  • #91 Studies of twins, family members, and adopted children together point to a significant genetic contribution to intelligence scores. For example, the test scores of identical twins reared separately are similar enough to lead one researcher to estimate that “about 70 percent” of intelligence score variation “can be attributed to genetic variation.” Furthermore, the most genetically similar people have the most similar scores ranging from +.85 for identical twins raised together, to about +.33 for unrelated individuals raised together.
  • #92 Studies of twins, family members, and adopted children together point to a significant genetic contribution to intelligence scores. For example, the test scores of identical twins reared separately are similar enough to lead one researcher to estimate that “about 70 percent” of intelligence score variation “can be attributed to genetic variation.” Furthermore, the most genetically similar people have the most similar scores ranging from +.85 for identical twins raised together, to about +.33 for unrelated individuals raised together.
  • #93 Studies of twins, family members, and adopted children together point to a significant genetic contribution to intelligence scores. For example, the test scores of identical twins reared separately are similar enough to lead one researcher to estimate that “about 70 percent” of intelligence score variation “can be attributed to genetic variation.” Furthermore, the most genetically similar people have the most similar scores ranging from +.85 for identical twins raised together, to about +.33 for unrelated individuals raised together.
  • #94 Studies of twins, family members, and adopted children together point to a significant genetic contribution to intelligence scores. For example, the test scores of identical twins reared separately are similar enough to lead one researcher to estimate that “about 70 percent” of intelligence score variation “can be attributed to genetic variation.” Furthermore, the most genetically similar people have the most similar scores ranging from +.85 for identical twins raised together, to about +.33 for unrelated individuals raised together.
  • #95 Studies of twins, family members, and adopted children together point to a significant genetic contribution to intelligence scores. For example, the test scores of identical twins reared separately are similar enough to lead one researcher to estimate that “about 70 percent” of intelligence score variation “can be attributed to genetic variation.” Furthermore, the most genetically similar people have the most similar scores ranging from +.85 for identical twins raised together, to about +.33 for unrelated individuals raised together.
  • #96 Studies of twins, family members, and adopted children together point to a significant genetic contribution to intelligence scores. For example, the test scores of identical twins reared separately are similar enough to lead one researcher to estimate that “about 70 percent” of intelligence score variation “can be attributed to genetic variation.” Furthermore, the most genetically similar people have the most similar scores ranging from +.85 for identical twins raised together, to about +.33 for unrelated individuals raised together.
  • #97 Studies of twins, family members, and adopted children together point to a significant genetic contribution to intelligence scores. For example, the test scores of identical twins reared separately are similar enough to lead one researcher to estimate that “about 70 percent” of intelligence score variation “can be attributed to genetic variation.” Furthermore, the most genetically similar people have the most similar scores ranging from +.85 for identical twins raised together, to about +.33 for unrelated individuals raised together.
  • #99 Studies of twins, family members, and adopted children also provide evidence for environmental influences on intelligence. The intelligence test scores of fraternal twins raised together are more similar than those of other siblings, and the scores of identical twins raised apart are less similar than the scores of identical twins raised together. Studies of children reared in extremely neglectful or enriched environments also indicate that life experiences significantly influence intelligence test scores. For example, research indicates that schooling and intelligence contribute to each other (and that both enhance later income). Programs such as Head Start increase school readiness and provide at least a small boost to emotional intelligence.
  • #105 Although gender similarities far outnumber gender differences, we find the differences in abilities more interesting. Research indicates that, compared with males, females are better spellers; are more verbally fluent; are better at remembering and locating objects; are more sensitive to touch, taste, and color; and are better emotion detectors. Males’ mental ability scores vary more than females’, and thus boys outnumber girls at both the low extreme and the high extreme. Boys out- perform girls in spatial ability tests and at math problem solving, but they underperform them in math computation. According to different perspectives, these differences may be explained as evolutionarily adaptive for each gender or as the result of social expectations and divergent opportunities.
  • #106 OBJECTIVE 17| Describe ethnic similarities and differences in intelligence test scores, and discuss some genetic and environmental factors that might explain them.
  • #107 American Blacks average about 10 points lower than White Americans on intelligence tests. European New Zealanders outscore native Maori New Zealanders, Israeli Jews outscore Israeli Arabs, and most Japanese outscore the stigmatized Japanese minority. Research suggests that envi- ronmental differences are largely responsible for these group differences.
  • #111 (1) genetics research indicates that the races are remarkably alike under the skin;
  • #112 (1) genetics research indicates that the races are remarkably alike under the skin;
  • #114 Stereotype threat is a self-confirming concern that one will be evaluated based on a negative stereotype. The phenomenon sometimes appears in intelligence testing among African-Americans and among women of all colors.
  • #116 A