Hostname: page-component-89b8bd64d-dvtzq Total loading time: 0 Render date: 2026-05-10T07:56:18.874Z Has data issue: false hasContentIssue false

Longitudinal Factor Analysis

Published online by Cambridge University Press:  01 January 2025

M. C. Corballis
Affiliation:
McGill University
R. E. Traub
Affiliation:
The Ontario Institute for Studies in Education

Abstract

A model is presented for factor analysing scores on a set of psychological tests administered as both pre- and postmeasures in a study of change. The model assumes that the same factors underlie the tests on each occasion, but that factor scores as well as factor loadings may change between occasions. Factors are defined to be orthogonal between as well as within occasions. A two-stage least squares procedure for fitting the model is described, and generally provides a unique rotation solution for the factors on each occasion.

Information

Type
Original Paper
Copyright
Copyright © 1970 The Psychometric Society

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable