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1 results

  • A K-Sample Significance Test for Independent Alpha Coefficients

  • A. Ralph Hakstian, Thomas E. Whalen
  • Journal:
    Psychometrika / Volume 41 / Issue 2 / June 1976
    Published online by Cambridge University Press:
    01 January 2025, pp. 219-231

  • The earlier two-sample procedure of Feldt [1969] for comparing independent alpha reliability coefficients is extended to the case of K ≥ 2 independent samples. Details of a normalization of the statistic under consideration are presented, leading to computational procedures for the overall K-group significance test and accompanying multiple comparisons. Results based on computer simulation methods are presented, demonstrating that the procedures control Type I error adequately. The results of a power comparison of the case of K = 2 with Feldt’s [1969] F test are also presented. The differences in power were negligible. Some final observations, along with suggestions for further research, are noted.