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The Standard Errors of the Feldt-Gilmer Congeneric Reliability Coefficients: Iowa Testing Programs Occasional Papers. Number 31.

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Gilmer, Jerry S.; Feldt, Leonard S. – 1982

The Feldt-Gilmer congeneric reliability coefficients make it possible to estimate the reliability of a test composed of parts of unequal, unknown length. The approximate standard errors of the Feldt-Gilmer coefficients are derived via a method using the multivariate Taylor's expansion. Monte Carlo simulation is employed to corroborate the…

Descriptors: Educational Testing, Error of Measurement, Mathematical Formulas, Mathematical Models

An Information Comparison of Conventional and Adaptive Tests in the Measurement of Classroom Achievement. Research Report 77-7.

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Bejar, Isaac I.; And Others – 1977

Information provided by typical and improved conventional classroom achievement tests was compared with information provided by an adaptive test covering the same subject matter. Both tests were administered to over 700 college students in a general biology course. Using the same scoring method, adaptive testing was found to yield substantially…

Descriptors: Academic Achievement, Achievement Tests, Adaptive Testing, Biology