A Standard Deviation Is the Square Root of the ______

question 58

Multiple Choice

A standard deviation is the square root of the ______.

• A)mean
• B)median
• C)range
• D)variance

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Definitions:

Parallel Forms Reliability

A measure of reliability used to assess the consistency of the results of two tests constructed in the same way from the same content domain.

Test-Retest Reliability

The consistency of measurements or scores when the same test is administered to the same participants under the same conditions at different times.

True Scores

Theoretical values that accurately reflect the actual attribute or ability measured, devoid of any measurement error or bias.

Observed Scores

The actual scores or data collected from research participants during a study.