SOME RELATIONS BETWEEN GUTTMAN'S PRINCIPAL COMPONENTS OF SCALE ANALYSIS AND OTHER PSYCHOMETRIC THEORY
Frederic M. Lord · ETS Research Bulletin Series · 1957
ABSTRACT Guttman's principal components for the weighting system are the item scoring weights that maximize the generalized Kuder‐Richardson reliability coefficient. In the case of dichotomous items, the principal component for any item is effectively the same as the factor loading of the item divided by the item standard deviation, the factor loadings being obtained from an ordinary factor analysis of the item intercorrelation matrix.