Academic
Publications
Coefficient alpha: a useful indicator of reliability?

Coefficient alpha: a useful indicator of reliability?,10.1016/S0191-8869(99)00093-8,Personality and Individual Differences,M. Shevlin,J. n. v. Miles,M

Coefficient alpha: a useful indicator of reliability?   (Citations: 26)
BibTex | RIS | RefWorks Download
A series of Monte Carlo simulations were carried out to examine the performance of Cronbach’s alpha as an index of reliability. Data were generated to be consistent with a single factor measured with six items. The magnitude of the factor loadings, systematic error and sample size were manipulated and alpha calculated from random samples. The results showed that alpha is influenced by factors other than the reliability of the items that comprise a scale. In particular the amount of systematic error, or deviation from unidimensionality, increased the estimate of alpha. The results are discussed in terms of traditional interpretation of alpha.
Journal: Personality and Individual Differences - PERS INDIV DIFFER , vol. 28, no. 2, pp. 229-237, 2000
Cumulative Annual
View Publication
The following links allow you to view full publications. These links are maintained by other sources not affiliated with Microsoft Academic Search.
Sort by: