A test with either all extremely difficult items or all extremely easy items will show ______ on individual test scores.
A) little variability
B) much variability
C) extreme range
D) large differences

Question

Quizplus · Accepted Answer

If all items are extremely difficult or easy, the test takers will either get all items correct or incorrect, resulting in very little variability among individual scores.

A Test with Either All Extremely Difficult Items or All