Examining Cronbach Alpha, Theta, Omega Reliability Coefficients According to the Sample Size

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ERCAN İ., YAZICI B., SIĞIRLI D., Ediz B., Kan I.

JOURNAL OF MODERN APPLIED STATISTICAL METHODS, vol.6, no.1, pp.291-303, 2007 (ESCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 6 Issue: 1
  • Publication Date: 2007
  • Doi Number: 10.22237/jmasm/1177993560
  • Journal Name: JOURNAL OF MODERN APPLIED STATISTICAL METHODS
  • Journal Indexes: Emerging Sources Citation Index (ESCI), Scopus
  • Page Numbers: pp.291-303
  • Keywords: Cronbach alpha, theta, omega, reliability, scale, sample size
  • Anadolu University Affiliated: Yes

Abstract

Differentiations according to the sample size of different reliability coefficients are examined. It is concluded that the estimates obtained by Cronbach alpha and teta coefficients are not related with the sample size, even the estimates obtained from the small samples can represent the population parameter. However, the Omega coefficient requires large sample sizes.