Posted by Joyce on Sunday, October 27, 2013 at 10:44am.
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

statictics  MathGuru, Sunday, October 27, 2013 at 8:02pm
The ratio of true score variance to the observed score variance: 40/50 = 0.80

statictics  Anonymous, Saturday, April 25, 2015 at 8:06am
0.80

statictics  liz, Sunday, April 26, 2015 at 10:23pm
The ABC SelfConcept Inventory has a splithalf reliability coefficient of 0.90, and the XYZ SelfConcept Inventory has a SpearmanBrown reliability coefficient of 0.90. If all other factors are equal, which instrument would you choose to use?

statictics  bill, Monday, July 20, 2015 at 12:44pm
Either one

statictics  Kishma, Saturday, January 23, 2016 at 12:47pm
0.40
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