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Peer reviewedPowers, Stephen; And Others – Journal of Educational Measurement, 1983
The validity of the equipercentile hypothesis of the Title I Evaluation and Reporting System norm-referenced evaluation model was examined using 3,224 seventh- and ninth-grade students. Findings from confidence interval procedures contradicted the equipercentile hypothesis. There was a pattern of large gains for students not receiving any special…
Descriptors: Achievement Gains, Evaluation Methods, Evaluation Needs, Hypothesis Testing
Download full textEhrlich, Alan – 1971
The purpose of this study was to measure the effectiveness of a monolingual versus a bilingual approach to the education of second-grade, Spanish-speaking children in New York City. The results were determined by measuring achievement in reading, which showed that the bilingual approach was indeed the more effective. The report includes an…
Descriptors: Bilingual Education, Control Groups, English, Experimental Groups
