Open Access„Infidelitãțile“ coeficientului de fidelitate Cronbach alfa
Author(s) -
Mihai Emilian Popa
Publication year - 2020
Publication title -
psihologia resurselor umane
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.144
H-Index - 3
eISSN - 2392-8077
pISSN - 1583-7327
DOI - 10.24837/pru.v9i1.395
Subject(s) - cronbach's alpha , internal consistency , context (archaeology) , test (biology) , reliability (semiconductor) , alpha (finance) , psychology , interpretation (philosophy) , psychometrics , computer science , clinical psychology , geography , physics , paleontology , power (physics) , archaeology , quantum mechanics , biology , programming language
Cronbach alpha coefficient is still commonly used in research dedicated to the development of psychologicaltests. However, there is a certain lack of understanding of the significance of real and, especially, has its limits.The article presents the fundamental postulates of classical test theory and analyzes, in this context, the mainissues affecting the calculation and interpretation of Cronbach alpha coefficient: unidimensionality, internal consistency,item number, characteristics of the data, the sampling error. Finally, are summarized recommendationsof good practices on the use and reporting Cronbach's alpha.