Author Question: Lowered performance compared to a previously higher level is referred to as a. an index. b. ... (Read 127 times)

eruditmonkey@yahoo.com · **on:** Jun 19, 2018

Lowered performance compared to a previously higher level is referred to as

a. an index.
b. deterioration.
c. a ceiling effect.
d. manifold.

Question 2

The reliability coefficient is

a. the mean of the observed scores.
b. the variance of the observed scores.
c. the ratio of the mean of the true scores on a test to the mean of the observed scores.
d. the ratio of the variance of the true scores on a test to the variance of the observed scores.