The Spearman-Brown Formula Is for Which Purpose

Multiple Choice

The Spearman-Brown formula is for which purpose?

A) To make adjustments due to concerns that examinees might look up answers between taking the same test twice
B) To make adjustments to reliability estimate due to concerns of shortness of the test (limited test items)
C) To adjust correlations during factor analysis to assure accurate representation of all items
D) To calculate the coefficient of determination (shared variance) when making adjustments to reliability estimates