Understanding Internal Consistency Reliability Estimates: A Conceptual Primer on Coefficient Alpha

Understanding Internal Consistency Reliability Estimates: A Conceptual Primer on Coefficient Alpha

Although often ignored, reliability is critical when interpreting study effects and test results. Accordingly, this article focuses on the most commonly used estimate of reliability, internal consistency coefficients, with emphasis on coefficient alpha. An interpretive framework is provided for appl...

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Veröffentlicht in:Measurement and evaluation in counseling and development 2001-10, Vol.34 (3), p.177-189
1. Verfasser: Henson, Robin K.
Format: Artikel
Sprache:eng
Schlagworte:
Alpha Coefficient
Doctoral Programs
Educational Research
Error of Measurement
Internal Consistency
Item Analysis
Methods
Psychology
Psychometrics
Reliability
Research Methodology
Scores
Test Reliability
Test Results
Test Theory
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Beschreibung
Zusammenfassung:Although often ignored, reliability is critical when interpreting study effects and test results. Accordingly, this article focuses on the most commonly used estimate of reliability, internal consistency coefficients, with emphasis on coefficient alpha. An interpretive framework is provided for applied researchers and others seeking a conceptual understanding of these estimates.
ISSN:0748-1756
1947-6302
DOI:10.1080/07481756.2002.12069034