Author Question: A test has a reliability coefficient of .75. This coefficient indicates that a. 56 percent of the ... (Read 170 times)

haleyc112 · **on:** Jun 20, 2018

A test has a reliability coefficient of .75. This coefficient indicates that

a. 56 percent of the variance in scores is true variance.
b. 75 percent of the variance in scores is true variance.
c. 25 percent of the variance in scores is true variance.
d. 75 percent of the test items are valid.

Question 2

The coefficient of correlation between a scholastic aptitude test and GPA was found to be 1.05. This coefficient indicates that

a. the scholastic aptitude test has good reliability.
b. the scholastic aptitude test has high validity.
c. the scholastic aptitude test is useful as a predictor of school achievement.
d. there is an error in the computation.
e. None of these are true.