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The wrong use of alpha'Cronbach

Author

Listed:
  • Ali TADJINE

    (University Abdelhamid Ibn Badis, Mostaganem – Algeria)

Abstract

The use of measuring instruments in any scientific research is one of the most critical methodological steps. This step is of such importance that it determines the efficiency and effectiveness of the research as a whole. It must guarantee their validity and loyalty, not subjecting them to the requirements of psychometric is simply exposing the results of research to be null. Validity and reliability are two procedures in testing, measuring instrument design. Cronbach’s coefficient alpha is probably the most frequently reported measure of reliability and most certainly the most abused one. Concerning reliability, Cronbach alpha weaknesses were examined, and some recommended alternatives method for assessing reliability such as stratified alpha, and composite reliability (construct reliability or Rho) were considered.

Suggested Citation

  • Ali TADJINE, 2019. "The wrong use of alpha'Cronbach," Annals of the University of Craiova, Series Psychology, Pedagogy, Teacher Training Department, University of Craiova, vol. 39(1), pages 27-34, June.
    • Handle: RePEc:edt:aucspp:v:39:y:2019:i:1:p:27-34
    as

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    References listed on IDEAS

    as
    1. Lee Cronbach, 1951. "Coefficient alpha and the internal structure of tests," Psychometrika, Springer;The Psychometric Society, vol. 16(3), pages 297-334, September.
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    More about this item

    Keywords

    Validity; Reliability; Cronbach’s alpha; Stratified alpha; Composite reliability.;
    All these keywords.

    JEL classification:

    • I21 - Health, Education, and Welfare - - Education - - - Analysis of Education

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