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Validity
evidence
CHARMAINE S. PROSIA
Education Evaluation
Educ 243
Central Mindanao University
Validity
This refers to the appropriateness of
the score-based inferences; or
decisions made based on the
students’ test results.
The degree to which evidence and
theory support the interpretations
of test scores entailed by the
proposed uses of a test. (APA,
1991).
Is a universally considered the most
important feature of a testing program.
It encompasses everything relating to the
testing process that makes score
inferences useful and meaningful.
(Ebel, 1961).
TYPES OF VALIDITY
EVIDENCE
VALIDITY
EVIDENCE
PREDICTIVE
VALIDITY
construct
VALIDITY
CONTENT
VALIDITY
IMPORTANT THINGS TO REMEMBER IN CONTENT
VALIDITY
1. The evidence of the content validity of your test is found in the
Table of Specifications (TOS).
2. This is the most important type of validity to us, as classroom
teacher.
3. There is no coefficient for content validity. It is determined
judgmentally, not empirically.
Criterion- Related Validity
A type of validation that refers to the extent to
which scores from a test relate to theoretically
similar measures; or it looks at the relationship
between a test score and an outcome.
- It is a measure of how accurately a student’s current test score can
be used to estimate a score on a criterion measure, like
performance in courses, classes or another measurement
instrument.
- Some other variables used as criteria are ratings of performance,
ratings of adjustment, units produced in a certain period of time,
amount of sales, and number of errors made.
Predictive Validity
– refers to the “power” or usefulness of test scores to predict future
performance.
- A type of validation that measures the extent to which a person’s
current test results can be used to estimate accurately what that
person’s performance or other criterion, such as test scores, will be at a
later time.
Example: Admission test for college entrance, or driving performance
for drivers’ license exam.
Concurrent Validity – is determined when test
scores and criterion measurement/s are either
made at the same time (concurrently) or in close
proximity to each other.
- There is no time interval is involved between
the administration of the new test and the
criterion or established test.
CONSTRUCT VALIDITY
- A type of validation that measures the extent to which a test
measures a hypothetical and unobservable variable or
quality.
- It is determined by investigating the psychological qualities,
traits, or factors measured a test.
Examples: Intelligence, math achievement, performance
anxiety.
FACTORS AFFECTING THE VALIDITY OF A TEST
ITEM
The test itself
The administration and scoring of a test
Personal factors influencing how student’s response to the
test
Validity is always specific to a particular group.
FACTORS THAT REDUCE THE VALIDITY
OF THE TEST ITEM
Poorly constructed test item
Unclear directions
Ambiguous items
Inadequate time limit
Improper arrangement of items
Validity Evidence

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Validity Evidence

  • 1. Validity evidence CHARMAINE S. PROSIA Education Evaluation Educ 243 Central Mindanao University
  • 2.
  • 4. This refers to the appropriateness of the score-based inferences; or decisions made based on the students’ test results.
  • 5. The degree to which evidence and theory support the interpretations of test scores entailed by the proposed uses of a test. (APA, 1991).
  • 6. Is a universally considered the most important feature of a testing program. It encompasses everything relating to the testing process that makes score inferences useful and meaningful. (Ebel, 1961).
  • 9.
  • 10.
  • 11. IMPORTANT THINGS TO REMEMBER IN CONTENT VALIDITY 1. The evidence of the content validity of your test is found in the Table of Specifications (TOS). 2. This is the most important type of validity to us, as classroom teacher. 3. There is no coefficient for content validity. It is determined judgmentally, not empirically.
  • 12. Criterion- Related Validity A type of validation that refers to the extent to which scores from a test relate to theoretically similar measures; or it looks at the relationship between a test score and an outcome.
  • 13. - It is a measure of how accurately a student’s current test score can be used to estimate a score on a criterion measure, like performance in courses, classes or another measurement instrument. - Some other variables used as criteria are ratings of performance, ratings of adjustment, units produced in a certain period of time, amount of sales, and number of errors made.
  • 14. Predictive Validity – refers to the “power” or usefulness of test scores to predict future performance. - A type of validation that measures the extent to which a person’s current test results can be used to estimate accurately what that person’s performance or other criterion, such as test scores, will be at a later time. Example: Admission test for college entrance, or driving performance for drivers’ license exam.
  • 15. Concurrent Validity – is determined when test scores and criterion measurement/s are either made at the same time (concurrently) or in close proximity to each other. - There is no time interval is involved between the administration of the new test and the criterion or established test.
  • 16. CONSTRUCT VALIDITY - A type of validation that measures the extent to which a test measures a hypothetical and unobservable variable or quality. - It is determined by investigating the psychological qualities, traits, or factors measured a test. Examples: Intelligence, math achievement, performance anxiety.
  • 17. FACTORS AFFECTING THE VALIDITY OF A TEST ITEM The test itself The administration and scoring of a test Personal factors influencing how student’s response to the test Validity is always specific to a particular group.
  • 18. FACTORS THAT REDUCE THE VALIDITY OF THE TEST ITEM Poorly constructed test item Unclear directions Ambiguous items Inadequate time limit Improper arrangement of items