In using the "known groups method" to determine whether a test is valid, a researcher needs to test
A) groups of people whom he or she knows personally.
B) subjects who agree to have their names known.
C) groups with published norms on a variety of personality tests.
D) groups which can be presumed to differ on the construct being measured.

Question

Quizplus · Accepted Answer

The known groups method involves testing groups of participants who are known to differ on the construct being measured. This is done in order to determine if the test is able to accurately discriminate between these groups. Option A and B are irrelevant to this method, while option C refers to using norm groups rather than known groups.

In Using the "Known Groups Method" to Determine Whether a Test