INTERNAL VALIDATION OF A SCALE - RELATIONSHIP BETWEEN PRINCIPAL COMPONENT ANALYSIS - CRONBACH ALPHA AND RELIABILITY

Authors
MORET L MESBAH M CHWALOW J LELLOUCH J
Citation
L. Moret et al., INTERNAL VALIDATION OF A SCALE - RELATIONSHIP BETWEEN PRINCIPAL COMPONENT ANALYSIS - CRONBACH ALPHA AND RELIABILITY, Revue d'epidemiologie et de sante publique, 41(2), 1993, pp. 179-186
Citations number
NO
Journal title
Revue d'epidemiologie et de sante publique → ACNP
ISSN journal
03987620
Volume
41
Issue
2
Year of publication
1993
Pages
179 - 186
Database
ISI
SICI code
0398-7620(1993)41:2<179:IVOAS->2.0.ZU;2-4
Abstract
The objective is to establish a simple relationship between two freque ntly used validation techniques which have been developed in the liter ature along the same lines: Principal Component Analysis and Cronbach' s alpha. We have shown that under certain conditions, it is possible t o estimate the reliability by using the results of a Principal Compone nt Analysis only. Moreover, we report the relation between Cronbach's alpha and intraclass correlation coefficient, which are both used to e stimate the reliability of continuous measures.