Free Psychometrics Theoretical Foundations Questions and Answers

Question 1

What is the main focus of Classical Test Theory (CTT)?

Accepted Answer

Observed scores, true scores, and error

Answer

Relationship between test items and latent traits

Answer

Performance differences among groups

Answer

Assessing cultural bias in testing

Question 2

What is a latent trait in psychometrics?

Accepted Answer

An underlying psychological construct inferred from data

Answer

A measurable physical characteristic

Answer

An observable behavior

Answer

A scoring system for test results

Question 3

Which psychometric theory emphasizes the probability of a specific response to a test item based on individual traits?

Accepted Answer

Item Response Theory (IRT)

Answer

Classical Test Theory (CTT)

Answer

Criterion-Referenced Testing

Answer

Norm-Referenced Testing

Question 4

What is factor analysis used for in psychometrics?

Accepted Answer

Exploring the structure of psychological constructs

Answer

Reducing cultural bias in tests

Answer

Predicting future performance

Answer

Measuring reliability over time

Question 5

What is a key assumption of Item Response Theory (IRT)?

Accepted Answer

Test-taker responses depend on both item characteristics and individual traits.

Answer

Test items are equally difficult for all test-takers.

Answer

Reliability and validity are irrelevant in test development.

Answer

Every test-taker's true score is constant across different items.