The theory of two factors: an alternative explanation. Part 1. General factor, "G."

Abstract

For Spearman's g, or general factor, another term, x, may be substituted which represents the standard in terms of which a given test performance is evaluated. Whenever the tetrad difference criterion is satisfied, g and x become limiting standards having values of 1.00. (PsycInfo Database Record (c) 2025 APA, all rights reserved)