Some computational short-cuts in the development or analysis of tests

Abstract

Formulas and procedures are given for calculating item and test means, variances, intercorrelations, and item-selection indices on the basis of an 'F-matrix' that shows the number passing every pair of items. If IBM equipment is not available to develop the F-matrix, alternate procedures based on hand sorting are recommended and described. (PsycInfo Database Record (c) 2025 APA, all rights reserved)