Summary Validity

Question 1

What is validity in the context of testing?

Answer 1

The extent to which a test measures what it purports to measure

Validity is crucial for ensuring that test results are meaningful and applicable.

Question 2

Define construct in testing.

Answer 2

The trait or characteristic we want to measure

The overlap between a construct and the test represents validity.

Question 3

What does construct underrepresentation refer to?

Answer 3

The part of the construct that is not covered by the test being used

It indicates gaps in what the test measures.

Question 4

What is construct-irrelevant variance?

Answer 4

Other characteristics that the test measures not related to the construct

This can distort the validity of the test.

Question 5

Define face validity.

Answer 5

Whether a test looks like it measures its target construct

It can be alluring and deceptive but may help in test selection.

Question 6

What is content validity?

Answer 6

The relationship between the content of a test and a well-defined domain of knowledge or behavior

A good match between test content and the relevant domain is essential.

Question 7

Why is content validity important for achievement tests?

Answer 7

It determines the extent of knowledge of some body of material

Instructional validity asks whether the content has actually been taught.

Question 8

What is job analysis in the context of employment tests?

Answer 8

The process of developing the list of knowledge and skills required by a job

It helps define the content domain for employment tests.

Question 9

What are the problems with content validity?

Answer 9

• Difficulty in specifying the content domain
• Difficulty in judging test item coverage
• Does not refer to actual performance

These issues can affect the reliability of the test results.

Question 10

Define criterion-related validity.

Answer 10

Establishes the relationship between performance on the test and some other criterion

It is crucial for understanding the test’s predictive capabilities.

Question 11

What are the two general contexts of criterion-related validity?

Answer 11

• Predictive validity
• Concurrent validity

Predictive validity aims to forecast future status, while concurrent validity checks current agreement.

Question 12

What is predictive validity?

Answer 12

Test aims to predict status on some criterion that will be attained in the future

Example: college entrance test predicting GPA.

Question 13

What is concurrent validity?

Answer 13

Checks on agreement between test performance and current status on another variable

Example: a depression test and a diagnosis.

Question 14

What is a validity coefficient?

Answer 14

Expresses the validity as a correlation coefficient

It quantifies the strength of the relationship between the test and the criterion.

Question 15

Define attenuation in the context of validity.

Answer 15

The limit placed on validity by imperfect reliability

It affects the accuracy of the validity coefficient.

Question 16

What is convergent validity?

Answer 16

A relatively high correlation between the test and some criterion thought to measure the same construct

Example: a test highly correlated with another known measure of depression.

Question 17

What is discriminant validity?

Answer 17

A relatively low correlation with constructs other than the intended measure

It ensures that the test is specific to the construct it aims to measure.

Question 18

What does multitrait-multimethod analysis aim to show?

Answer 18

Different ways of measuring the same trait yield similar results

It contrasts with comparing different traits using the same methods.

Question 19

What is incremental validity?

Answer 19

How much new, unique information a test adds to existing information

It assesses the additional value of a test beyond what is already known.

Question 20

Define decision theory.

Answer 20

A body of concepts for analyzing the quantitative effects of decisions

It includes understanding hits, false positives, and false negatives.

Question 21

What is sensitivity in testing?

Answer 21

The extent to which the test identifies the criterion group

Example: identifying people with depression.

Question 22

What is specificity in testing?

Answer 22

The extent to which the test does not identify the contrast group

Example: not identifying people without depression.

Question 23

What does construct validity involve?

Answer 23

• Assessing whether test questions represent the trait well
• Correlating with related traits and behaviors
• Not correlating strongly with unrelated traits

It ensures that the test accurately measures the intended construct.

Question 24

What is consequential validity?

Answer 24

Refers to the consequences of a test’s uses and interpretations

Its relevance is debated among authorities.

Question 25

Define **validity generalization**.

Answer 25

The process of weighing all evidence and relevance of existing studies to a specific anticipated use ## Footnote It helps in understanding the applicability of test results.