Author Question: Low discriminating power is acceptable, but only if the item A. has a 50 level of difficulty. B. ... (Read 42 times)

burton19126 · **on:** Jun 20, 2018

Low discriminating power is acceptable, but only if the item

A. has a 50 level of difficulty.
B. has only three alternatives.
C. is closely related to other items.
D. measures a unique learning outcome.

Question 2

On a test of 50 students, if 25 students answered an item correctly, the item difficulty is

A. 25.
B. 50.
C. 75.
D. 100.