The Expected Variance of the Sampling Errors for a Set of Item-Criterion Correlations  

Oleh:

Brogden, Hubert E.

Jenis: Article from Journal - e-Journal
Dalam koleksi: Psychometrika: A Journal of Quantitative Psychology vol. 22 no. 1 (Mar. 1957), page 75-78.
Topik: Definition of Symbols; Expected Variance; Item-Criterion Correlations
Fulltext: Vol 22 No.1 Mar 1957 p.75-78.pdf (169.53KB)

Isi artikel

An expression for the expected variance of the sampling errors for the validities of a set of correlated items that is computationally feasible when the number of items is large is developed. Since the item difficulties are assumed to be constant, the estimate must be applied to pools or sub-pools of items reasonably homogeneous with respect to difficulty.

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