Go Back Research Article December, 2012

Alpha, FACTT, and Beyond

Author Peter M. Bentler

Abstract

Sijtsma and Pfadt (Psychometrika, 2021) provide a wide-ranging defense for the use of coefficient alpha. Alpha is practical and useful when its limitations are acceptable. This paper discusses several methodologies for reliability, some new here, that go beyond alpha and were not emphasized by Sijtsma and Pfadt. Bentler’s (Psychometrika 33:335–345, 1968. https://doi.org/10.1007/BF02289328) combined factor analysis (FA) and classical test theory (CTT) model. FACTT provides a key conceptual foundation.

Keywords

Coefficient Alpha Reliability Estimation FACTT Model Classical Test Theory (CTT) Factor Analysis (FA) Bias-Corrected Generalized Lower Bound (glb) Bias-Corrected Lambda-4 Covariate-Free Reliability Specificity-Enhanced Reliability Psychometrics probabilistic lower bound
Details
Volume 86
Issue 4
Pages 861-868
DOI 10.1007/s11336-021-09797-8
ISSN 1860-0980
Impact Metrics