Suppose we obtain the following response patterns on a multiple choice question with correct answer "c": a b c d e
High-scorers 5 6 80 5 4
Low-scorers 15 14 40 16 15
What needs to be done to improve this test item?
A) the overall difficulty should be decreased
B) an alternative answer c) should be rewritten
C) nothing, this is a good test item
D) the distractors should be made more difficult

Question

Quizplus · Accepted Answer

This test item shows a clear distinction between high-scorers and low-scorers, with the majority of high-scorers selecting the correct answer (c) and a more distributed response among low-scorers. This indicates the item effectively differentiates between levels of understanding or preparation, which is a characteristic of a good test item.

Suppose We Obtain the Following Response Patterns on a Multiple