Asked by Joyce

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?
Answer
a.
0.40
b.
0.50
c.
0.80
d.
0.90
Answered by MathGuru
The ratio of true score variance to the observed score variance: 40/50 = 0.80

Answered by Anonymous
0.80
Answered by liz
The ABC Self-Concept Inventory has a split-half reliability coefficient of 0.90, and the XYZ Self-Concept Inventory has a Spearman-Brown reliability coefficient of 0.90. If all other factors are equal, which instrument would you choose to use?
Answered by bill
Either one
Answered by Kishma
0.40
Answered by nj
90
Answered by Anonymous
.80
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