Author Question: A test designed to measure achievement motivation proved to be very consistent but to have no ... (Read 94 times)

torybrooks · **on:** Jun 20, 2018

A test designed to measure achievement motivation proved to be very consistent but to have no relation to other measures of motivation or teachers' ratings of motivation. The test is

a. valid and reliable. c. valid but not reliable.
b. reliable but not valid. d. neither valid nor reliable.

Question 2

The textbook defines test reliability as the ratio between the variance of the

a. error scores and true scores.
b. true scores and observed scores.
c. error scores and observed scores.
d. two sets of scores from identical or equivalent tests.