Asked by Crystal

According to classical test theory if the observed variance of a test is 50 and the true variance is 40 what is the estimated reliability of the test?
a. 0.40
b. 0.50
c.0.80
d. 0.90
Answered by MathGuru
Reliability = True variance/Observed variance

Therefore:
R = 40/50 = .8

Answered by fore
0.40
Answered by Gail
R=0.8
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