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Psychometrika | Vol.22, Issue.4 | | Pages 395-404

Item selection methods for increasing test homogeneity

Harold Webster

Abstract

A number of methods for increasing test homogeneity by item selection are discussed. Exact selection conditions which will maximize obtained homogeneity as measured by KR - 20 and KR - 21 are derived, and an application is given. Since they require only item count data, the selection conditions are economical to apply.

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Item selection methods for increasing test homogeneity

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Keywords

item selection obtained homogeneity

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Harold Webster,.Item selection methods for increasing test homogeneity. 22 (4),395-404.

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