Why might IRT produce a more meaningful analysis of a student's ability versus just the percentage correct?
A) Because it is much easier for the student to understand.
B) Because it does not use the scree plot.
C) Because the abilities are less affected by poor questions.
D) Because it will produce the same test score.

Question

Quizplus · Accepted Answer

IRT takes into account the difficulty of each question on the exam and weights the student's abilities accordingly. This means that poor questions are given less weight in the final analysis, resulting in a more accurate reflection of the student's abilities. In contrast, percentage correct can be influenced by factors such as guessing and the quality of the questions on the exam, which may not accurately reflect a student's true abilities.

Why Might IRT Produce a More Meaningful Analysis of a Student's