Test “Reliability”: Its Meaning and Determination  

Oleh:

Cronbach, Lee J.

Jenis: Article from Journal - e-Journal
Dalam koleksi: Psychometrika: A Journal of Quantitative Psychology vol. 12 no. 1 (Mar. 1947), page 1-16.
Topik: Test; Reliability; Techniques of Estimation
Fulltext: Test “Reliability” Its Meaning and Determination.pdf (866.9KB)

Isi artikel

The concept of test reliability is examined in terms of general, group, and specific factors among the items, and the stability of scores in these factors from trial to trial. Four essentially different definitions of reliability are distinguished, which may be called the hypothetical self-correlation, the coefficient of equivalence, the coefficient of stability, and the coefficient of stability and equivalence. The possibility of estimating each of these coefficients is discussed. The coefficients are not interchangeable and have different values in corrections for attentuation, standard errors of measurement, and other practical applications.

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