Determining sample size for a test of the equality of alpha coefficients when the number of part-tests is small

Psychological Methods

Volumn 4, Issue 4, 1999, Pages 366-377

  Feldt, Leonard S ^b   Ankenmann, Robert D ^a  

^a UNIVERSITY OF IOWA   (United States)

^b NONE

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0033276485     PISSN: 1082989X     EISSN: None     Source Type: Journal    
DOI: 10.1037/1082-989X.4.4.366     Document Type: Article

References (16)

1. Alsawalmeh, Y. M., & Feldt, L. S. (1994). A modification of Feldt's test of the equality of two dependent alpha coefficients. Psychometrika, 59, 49-57.
2. Cleary, T. A., & Linn, R. L. (1969). Error of measurement and the power of a statistical test. British Journal of Mathematical and Statistical Psychology, 22, 49-55.
3. Excel 5.0 [Computer software]. (1993). Redmond, WA: Microsoft Corporation.
4. Feldt, L. S. (1965). The approximate sampling distribution of Kuder-Richardson reliability coefficient twenty. Psychometrika, 30, 357-370.
5. Feldt, L. S. (1969). A test of the hypothesis that Cronbach's alpha or Kuder-Richardson coefficient twenty is the same for two tests. Psychometrika, 34, 363-373.
6. Feldt, L. S. (1980). A test of the hypothesis that Cronbach's alpha reliability coefficient is the same for two tests administered to the same sample. Psychometrika, 45, 99-105.
7. Feldt, L. S., & Ankenmann, R. D. (1998). Appropriate sample size for comparing alpha reliabilities. Applied Psychological Measurement, 22, 170-178.
8. Feldt, L. S., & Qualls, A. L. (1996). Bias in coefficient alpha arising from heterogeneity of test content. Applied Measurement In Education, 9, 277-286.
9. Feldt, L. S., Woodruff, D. J., & Salih, F. A. (1987). Statistical inference for coefficient alpha. Applied Psychological Measurement, 11, 93-103.
10. Hakstian, A. R., & Whalen, T. E. (1976). A k-sample significance test for independent alpha coefficients. Psychometrika, 41, 219-231.
11. Kendall, M. G., & Stuart, A. (1977). The advanced theory of statistics (Vol. 1, 4th ed.). New York: Macmillan.
12. Kristof, W. (1963). The statistical theory of stepped-up reliability coefficients when a test has been divided into several equivalent parts. Psychometrika, 28, 221-238.
13. Novick, M. R., & Lewis, C. (1967). Coefficient alpha and the reliability of composite measurements. Psychometrika, 32, 1-13.
14. Odell, P. L., & Feiveson, A. H. (1966). A numerical procedure to generate a sample covariance matrix. Journal of the American Statistical Association, 61, 199-203.
15. Woodruff, D. J., & Feldt, L. S. (1986). Tests for equality of several alpha coefficients when their sample estimates are dependent. Psychometrika, 51, 393-413.
16. Zimmerman, D. W., Zumbo, B. D., & Lalonde, C. (1993). Coefficient alpha as an estimate of test reliability under violation of two assumptions. Educational and Psychological Measurement, 53, 33-49.