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Educational Assessment, Evaluation, and Research

Western Michigan University

Dissertations

1981

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Full-Text Articles in Education

An Empirical Study Of The Equipercentile Assumption As A No-Treatment Expectation In Title I Evaluations, Alan C. Nowakowski Aug 1981

An Empirical Study Of The Equipercentile Assumption As A No-Treatment Expectation In Title I Evaluations, Alan C. Nowakowski

Dissertations

The focus of this study was the tenability of the underlying assumption of Model A, the norm-referenced model, of the Title I Evaluation and Reporting System (TIERS). Model A estimates the no-treatment expectation from normative data. The assumption made by the Model is that, in the absence of special treatment, student groups maintain a constant percentile position in relation to national norms.

The study examined the extent to which student groups maintain a constant percentile position over a six month period. The study used a sizable representative student subsample of the standardization group for the 1978 Metropolitan Achievement Test (MAT). …