Psychology is the scientific study of behavior and mental processes. The goals of psychology are to describe, predict, explain, and control behavior. Early perspectives in psychology included structuralism, functionalism, Gestalt psychology, psychoanalysis, and behaviorism. Modern perspectives include the psychodynamic, behavioral, humanistic, biopsychological, cognitive, sociocultural, evolutionary, and other perspectives. Researchers use various methods including naturalistic observation, surveys, correlation, experiments, case studies, and more to study behavior scientifically while ensuring ethical treatment of participants. Critical thinking is important to evaluate psychological claims.
This contains PPT of Unit 1 of Psychology for F.Y.B.Sc. Nursing students. Psychology is the scientific study of the mind and behavior. It seeks to understand and explain how individuals think, feel, act, and interact with the world around them. The field encompasses a broad range of topics, including perception, cognition, emotion, personality, development, social interactions, mental health, and more. Psychologists use various methods and theories to explore, analyze, and predict human behavior and mental processes.
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Psychology is defined as the scientific study of behavior and mental processes. It has the same goals as other sciences; to describe, explain, predict and control behaviour. Utilizes critical thinking. Theories are based on empirical data. Research is conducted in a systematic and scientific manner
Introducing Psychology. Psychology is the scientific study of mind and behaviour. The word “psychology” comes from the Greek words “psyche,” meaning life, and “logos,” meaning explanation. ... Psychologists do work in forensic fields, and they do provide counselling and therapy for people in distress.
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2. What is Psychology?
Psychology - scientific study of behavior
and mental processes.
– Behavior - outward or overt actions and
reactions.
– Mental processes - internal, covert activity
of our minds.
Psychology is a science
– Prevent possible biases from leading to
faulty observations
– Precise and careful measurement
3. Psychology’s Four Goals
The goals of psychology are to describe, predict
and control behavior.
• Description
– What is happening?
• Explanation
• Why is it happening?
• Theory - general explanation of a set of
observations or facts
• Prediction
• Will it happen again?
• Control
• How can it be changed?
4. Importance of asking good questions.
bias can influence the questions we ask
and the conclusions we draw.
Faulty Syllogisms
video
5. Structuralism
Structuralism - focused on structure or basic
elements of the mind.
Wilhelm Wundt’s psychology laboratory
– Germany in 1879
– Developed the technique of objective
introspection – process of objectively
examining and measuring one’s thoughts
and mental activities.
Edward Titchener
– Wundt’s student; brought structuralism to America.
Margaret Washburn
– Titchener’s student; first woman to earn a Ph.D. in
psychology.
Structuralism died out in early 1900s.
6. Functionalism
Functionalism - how the mind allows
people to adapt, live, work, and play.
Proposed by William James.
Influenced the modern fields of:
– Educational psychology
– Evolutionary psychology
– Industrial/organizational psychology
7.
8. Gestalt Psychology
Gestalt – “good figure” psychology.
The “whole” bigger than the sum of
the parts
Started with Wertheimer, who studied
sensation and perception.
Gestalt ideas are now part of the
study of cognitive psychology, a field
focusing not only on perception but
also on learning, memory, thought
processes, and problem solving.
9. Psychoanalysis
Psychoanalysis - the theory and therapy
based on the work of Sigmund Freud.
Freud’s patients suffered from nervous
disorders with no found physical cause.
– Freud proposed that there is an unconscious
(unaware) mind into which we push, or repress, all
of our threatening urges and desires.
– He believed that these repressed urges, in trying
to surface, created nervous disorders.
– Freud stressed the importance of early childhood
experiences.
10. Behaviorism
Behaviorism - the science of
behavior that focuses on
observable behavior only.
– Must be directly seen and
measured.
Proposed by John B. Watson.
– Based much from work of Ivan
Pavlov who demonstrated that a
reflex could be conditioned
(learned).
– Watson believed that phobias
were learned.
Case of “Little Albert” – taught to
fear a white rat.
11. Modern Perspectives
Psychodynamic Perspective-
Motivation is unconscious
Behavioral perspective – B. F.
Skinner studied operant
conditioning of voluntary
behavior.
– Behaviorism became a major
force in the twentieth century.
– Skinner introduced the concept
of reinforcement to
behaviorism.
12. Modern Perspectives
Humanistic perspective
– Owes far more to the early roots of
psychology in the field of
philosophy.
– Humanists held the view that people
have free will, the freedom to
choose their own destiny.
– Early founders:
Abraham Maslow
Carl Rogers
– Emphasized the human potential,
the ability of each person to become
the best person he or she could be.
Self-actualization - achieving one’s
full potential or actual self.
13. Modern Perspectives
Biopsychological perspective -
attributes human and animal
behavior to biological events
occurring in the body, such
as genetic influences,
hormones, and the activity of
the nervous system.
Cognitive perspective - focuses
on memory, intelligence,
perception, problem solving,
and learning.
14. Seven Modern Perspectives
Sociocultural perspective -
focuses on the relationship
between social behavior and
culture.
Evolutionary perspective -
focuses on the biological bases
of universal mental
characteristics that all humans
share.
– Looks at the way the mind works and why it
works as it does.
– Behavior is seen as having an adaptive or
survival value.
15. Types of Psychological Professionals
Psychiatrist - a medical doctor who has specialized in
the diagnosis and treatment of psychological disorders.
Psychoanalyst - either a psychiatrist or a psychologist
who has special training in the theories of Sigmund
Freud and his method of psychoanalysis.
Psychiatric social worker - a social worker with some
training in therapy methods who focuses on the
environmental conditions that can have an impact on
mental disorders, such as poverty, overcrowding, stress,
and drug abuse.
Psychologist - a professional with an academic degree
and specialized training in one or more areas of
psychology.
– Can do counseling, teaching, and research and may
specialize in any one of a large number of areas
within psychology.
– Areas of specialization in psychology include
clinical, counseling, developmental, social, and
personality, among others.
16. LO 1.6
Psychiatrist,
psychologist, and
other professionals
Menu
17. Psychology and the Scientific Method
Scientific method - system of gathering data
so that bias and error in measurement are
reduced.
Steps in the Scientific Method:
Perceive the question.
Form a hypothesis – tentative explanation of a
phenomenon based on observations.
Test the hypothesis.
Draw conclusions.
Report your results so that others can try to replicate -
repeat the study or experiment to see if the same
results will be obtained in an effort to demonstrate
reliability of results.
18. LO 1.7 Psychology is a science; steps in scientific method
The Scientific Method
19. Descriptive Methods
Naturalistic observation – watching animals or
humans behave in their normal environment.
Major Advantage:
– Realistic picture of behavior.
Disadvantages:
– Observer effect - tendency of people or animals to
behave differently from normal when they know they
are being observed.
Participant observation - a naturalistic observation in
which the observer becomes a participant in the group
being observed (to reduce observer effect).
– Observer bias - tendency of observers to see what
they expect to see.
Blind observers – people who do not know what the
research question is (to reduce observer bias).
– Each naturalistic setting is unique and observations
may not hold.
20. Descriptive Methodslaboratory settings
LO 1.8 Naturalistic and
Laboratory observation – watching animals
or humans behave in a laboratory setting.
Advantages:
– Control over environment.
– Allows use of specialized equipment.
Disadvantage:
– Artificial situation that may result in artificial
behavior.
Descriptive methods lead to the formation
of testable hypotheses.
21. Descriptive Methods
Case study - study of one individual in
great detail.
– Advantage: tremendous amount of detail.
– Disadvantage: cannot apply to others.
– Famous case study: Phineas Gage.
22. Descriptive Methods
Surveys – researchers will ask a series of questions
about the topic under study.
Given to a representative sample - randomly selected
sample of subjects from a larger population of
subjects.
Population - the entire group of people or animals in which the
researcher is interested.
Advantages:
– Data from large numbers of people.
– Study covert behaviors.
Disadvantages:
– Have to ensure representative sample (or results not
meaningful).
– People are not always accurate (courtesy bias).
23. LO 1.9 Case studies and surveys
Random Sampling from Population
INFERENCE
POPULATION
SAMPLE
24. Finding Relationships
Correlation - a measure of the relationship
between two variables.
– Variable - anything that can change or vary.
– Measures of two variables go into a mathematical
formula and produce a correlation coefficient (r)
– which represents two things:
direction of the relationship.
strength of the relationship.
– Knowing the value of one variable allows
researchers to predict the value of the other
variable.
25. Finding Relationships
Correlation coefficient ranges from –1.00 to +1.00.
Closer to 1.00 or -1.00, the stronger the relationship
between the variables.
– No correlation = 0.0.
– Perfect correlation = -1.00 OR +1.00.
Positive correlation – variables are related in the same
direction.
– As one increases, the other increases; as one decreases, the
other decreases.
Negative correlation – variables are related in opposite
direction.
– As one increases, the other decreases.
CORRELATION DOES NOT PROVE CAUSATION!!!
27. The Experiment
Experiment - a deliberate manipulation of a
variable to see if corresponding changes in
behavior result, allowing the determination of
cause-and-effect relationships.
Definition:
Operational definition - definition of a variable of Aggressive
interest that allows it to be directly measured. play
Independent variable (IV) - variable in an IV:
experiment that is manipulated by the Violent
experimenter. TV
Dependent variable (DV) - variable in an
experiment that represents the measurable
response or behavior of the subjects in the DV:
experiment. Aggressive
play
28. The Experiment
Experimental group - subjects in an experiment
who are subjected to the independent variable.
Exp
Control group - subjects in an experiment who Group:
are not subjected to the independent variable Watch
and who may receive a placebo treatment TV
(controls for confounding variables).
Random assignment - process of assigning
subjects to the experimental or control groups
randomly, so that each subject has an equal Control
chance of being in either group. Group:
– Controls for confounding (extraneous, interfering) No TV
variables.
29. LO 1.11 Experimental approach and terms
Random Assignment
Experimental Group
SAMPLE Test for Differences
Control Group
30. The Experiment
Placebo effect - the phenomenon in which the
expectations of the participants in a study can
influence their behavior.
– Single-blind study- subjects do not know if they are in the
experimental or the control group (reduces placebo effect).
Experimenter effect - tendency of the experimenter’s
expectations for a study to unintentionally influence the
results of the study.
– Double-blind study - neither the experimenter nor the subjects
knows if the subjects are in the experimental or control group
(reduces placebo effect and experimenter effect).
Quasiexperimental designs - not considered true
experiments because of the inability to randomly
assign participants to the experimental and control
groups (for example, if age is the variable of interest).
31. Example of a Real Experiment
Hypothesis: extrinsic (external) reward would reduce
creativity.
Independent variable – two different sets of
instructions.
Dependent variable – creativity on art project as
judged by raters blind to the group assignment.
Experimental group – instructed to make project to
compete for an award (prizes).
Control group – instructed to make project for fun;
prizes would be raffled off.
Results supported hypothesis: those competing for
extrinsic reward were less creative.
32. Ethics in Psychological Research
Ethics committees - groups of psychologists or other
professionals who look over each proposed research
study and judge it according to its safety and
consideration for the participants in the study.
Common ethical guidelines:
1. Rights and well-being of participants must be weighed
against the study’s value to science.
2. Participants must be allowed to make an informed decision
about participation.
3. Deception must be justified.
4. Participants may withdraw from the study at any time.
5. Participants must be protected from risks or told explicitly of
risks.
6. Investigator must debrief participants, telling the true nature
of the study and expectations of results.
7. Data must remain confidential.
33. Ethics in Psychological Research
Animal research – answers questions we
could never do with human research.
Focus is on avoiding exposing them to
unnecessary pain or suffering.
Animals are used in approximately 7% of
psychological studies.
34. Critical Thinking
Critical thinking - making reasoned
judgments about claims.
Four Basic Criteria:
1. There are very few “truths” that do not need to
be subjected to testing.
2. All evidence is not equal in quality.
3. Just because someone is considered to be an
authority or to have a lot of expertise does not
make everything that person claims
automatically true.
4. Critical thinking requires an open mind.
35. Pseudopsychologies
Pseudopsychologies - systems of
explaining human behavior that are
not based on or consistent with
scientific evidence.
– Phrenology – reading bumps on the
skull.
– Palmistry – reading palms.
– Graphology – analysis of personality
through handwriting.
36. to understand events in the world we turn to folk
wisdom.
Such efforts to explain events are presented in
ways that can never be proved wrong. (fallacies)
Hence folk wisdom provides answers for all
situations but explains none.
the law of parsimony
When there are two (or more) competing
explanations for an event or claim, we usually
select the one requiring the fewest assumptions.
37. Critical Thinking Application
Critical thinking applied to astrology
(a pseudopsychology):
• Are astrologer’s charts up-to-date?
• What exactly is so important about the
moment of birth?
• Why would the stars and planets have any
effect on a person?
• Is it gravity?
38. Determining whether claims are based on
scientific observations
How could the existence of UFOs be explained
scientifically
• Be skeptical
• Examine definitions of terms
• Examine the assumptions or premises of
arguments
• Be cautious in drawing conclusions from
evidence
• Consider alternative interpretations of research
evidence
• Do not oversimplify
• Do not over-generalize
• Apply critical thinking to all areas of life