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 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?

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

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

## Answer This Question

## Related Questions

- statistic/Psychology - According to classical test theory if the observed ...
- statistic/Psychology - According to classical test theory, if the observed ...
- test and measures - If the true score variance is equal to 10 and error variance...
- statistics - Select the TWO options that are TRUE statements about two-sample t-...
- statistics - Select the TWO options that are TRUE statements about two-sample t-...
- Statistics - testing for the differences between means of 2 independent ...
- Statistics - The ____________ is a hypothesis-testing procedure in which there ...
- Stats (Math) - Assume that Science scores on a 25-point quiz for a random sample...
- Stats II - I have a question on a quiz and I don't even know where to begin on ...
- statistics - A researcher is testing a null hypothesis that states: H: ì = 50. A...

More Related Questions