A Note on the Standard Length of a Test  

Oleh:

Myers, Charles T.

Jenis: Article from Journal - e-Journal
Dalam koleksi: Psychometrika: A Journal of Quantitative Psychology vol. 26 no. 4 (Dec. 1961), page 443-446.
Topik: Standard Length; Test
Fulltext: 2604_1009.pdf (147.02KB)

Isi artikel

This paper describes a relationship between the variance-covariance matrix of test items and Woodbury's concept of the standard length of a test. An index of item-test relationship is described in standard length terms. The sum of these indices for the items in a test is equal to the square of Jackson's coefficient of sensitivity.

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