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Alpha, Dimension-Free, and Model-Based Internal Consistency Reliability

Psychometrika, 2009-03, Vol.74 (1), p.137-143 [Peer Reviewed Journal]

The Psychometric Society 2008 ;2009 INIST-CNRS ;The Psychometric Society 2009 ;ISSN: 0033-3123 ;EISSN: 1860-0980 ;DOI: 10.1007/s11336-008-9100-1 ;PMID: 20161430 ;CODEN: PSMTA2

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Title:
Alpha, Dimension-Free, and Model-Based Internal Consistency Reliability
Author: Bentler, Peter M.
Subjects: Assessment ; Behavioral Science and Psychology ; Biological and medical sciences ; Decomposition ; Fundamental and applied biological sciences. Psychology ; Humanities ; Internal Consistency ; Law ; Psychology ; Psychology. Psychoanalysis. Psychiatry ; Psychology. Psychophysiology ; Psychometrics ; Psychometrics. Statistics. Methodology ; Quantitative psychology ; Reliability ; Statistical Theory and Methods ; Statistics for Social Sciences ; Statistics. Mathematics ; Structural Equation Models ; Testing and Evaluation ; Theory and Methods ; Variables
Is Part Of: Psychometrika, 2009-03, Vol.74 (1), p.137-143
Description: As pointed out by Sijtsma ( in press ), coefficient alpha is inappropriate as a single summary of the internal consistency of a composite score. Better estimators of internal consistency are available. In addition to those mentioned by Sijtsma, an old dimension-free coefficient and structural equation model based coefficients are proposed to improve the routine reporting of psychometric internal consistency. The various ways to measure internal consistency are also shown to be appropriate to binary and polytomous items.
Publisher: New York: Springer-Verlag
Language: English
Identifier: ISSN: 0033-3123
EISSN: 1860-0980
DOI: 10.1007/s11336-008-9100-1
PMID: 20161430
CODEN: PSMTA2
Source: ProQuest One Psychology
Education Resources Information Center (ERIC)
Alma/SFX Local Collection
ProQuest Central

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Alpha, Dimension-Free, and Model-Based Internal Consistency Reliability

The Psychometric Society 2008 ;2009 INIST-CNRS ;The Psychometric Society 2009 ;ISSN: 0033-3123 ;EISSN: 1860-0980 ;DOI: 10.1007/s11336-008-9100-1 ;PMID: 20161430 ;CODEN: PSMTA2

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