An item with a p value of _______ guarantees that the item will be a good discriminator.
A) 0.5
B) 1.0
C) 0.0
D) none of the above

Question

Quizplus · Accepted Answer

A p-value does not guarantee that an item will be a good discriminator. The p-value indicates the probability of obtaining a test result at least as extreme as the one observed during the test, assuming that the null hypothesis is true. It does not directly relate to the discriminatory power of a test item. Discriminatory power is better assessed by other statistics, such as item discrimination indices.

An Item with a P Value of _______ Guarantees That