When Analyzing a Particular Item's Discriminative Abilities for an Ability

Multiple Choice

When analyzing a particular item's discriminative abilities for an ability test,the test developer typically compares the responses to the item to

A) the highest and lowest scorers on the test.
B) the highest and middle scorers on the test.
C) the performance on the test of a minority groups to rule out any possible bias.
D) testtakers from predefined age groups to rule out any possible age discrimination.