What makes Item Response Theory different from classical theory?
A)It is a family of theories of methods used to develop instruments.
B)Traditional forms of calculating reliability are appropriate.
C)The constructs being measured are observable.
D)The focus of IRT is on error rates.

Question

What makes Item Response Theory different from classical theory?
A)It is a family of theories of methods used to develop instruments.
B)Traditional forms of calculating reliability are appropriate.
C)The constructs being measured are observable. ​
D)The focus of IRT is on error rates.

Quizplus · Accepted Answer

Item Response Theory (IRT) is distinct from classical test theory because it is a collection of models and methods used specifically for developing and refining instruments for measurement, focusing on the relationship between individuals' abilities (or traits) and their item responses, rather than assuming a uniform error across all test items.

What Makes Item Response Theory Different from Classical Theory