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The Use of Unidimensional Item Parameter Estimates of Multidimensional Items in Adaptive Testing.

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Ackerman, Terry A. – 1987

The purpose of this study was to investigate the effect of using multidimensional items in a computer adaptive test (CAT) setting which assumes a unidimensional item response theory (IRT) framework. Previous research has suggested that the composite of multidimensional abilities being estimated by a unidimensional IRT model is not constant…

Descriptors: Adaptive Testing, College Entrance Examinations, Computer Assisted Testing, Computer Simulation

Relationships between Direct and Indirect Measures of Writing Ability.

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Carlson, Sybil B.; Camp, Roberta – 1985

This paper reports on Educational Testing Service research studies investigating the parameters critical to reliability and validity in both the direct and indirect writing ability assessment of higher education applicants. The studies involved: (1) formulating an operational definition of writing competence; (2) designing and pretesting writing…

Descriptors: College Entrance Examinations, Computer Assisted Testing, English (Second Language), Essay Tests