Use of the Spearman-Brown formula would be INAPPROPRIATE to
A) estimate the effect on reliability of shortening a test.
B) determine the number of items needed in a test to obtain the desired level of reliability.
C) estimate the internal consistency of a speed test.
D) All of these

Question

Quizplus · Accepted Answer

The Spearman-Brown formula is used to estimate the increase in internal consistency reliability that would result from lengthening a test or increasing the number of items. It is not appropriate for shortening a test or determining the number of items needed for a desired level of reliability. Additionally, it is not typically used for speed tests, as speed tests often have low internal consistency due to their nature of measuring speed rather than accuracy or consistency.

Use of the Spearman-Brown Formula Would Be INAPPROPRIATE to