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Tillinghast, B. S., Jr.; Renzulli, Joseph S. – Journal of Educational Research, 1968
The purpose of this study was to further examine the reliability of the Peabody Picture Vocabulary Test (PPVT), a new instrument to measure hearing vocabulary so that a student's verbal intelligence may be inferred. A group testing procedure was utilized by reproducing the PPVT plates on 35 millimeter transparent slides and projecting them onto a…
Descriptors: Aptitude Tests, Elementary School Students, Evaluation, Group Testing
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Jensen, Murray; Johnson, David W.; Johnson, Roger T. – Journal of Educational Research, 2002
Examined the effects of positive interdependence versus no interdependence on college students' academic achievement. Students took weekly electronic quizzes where they could interact with groupmates in a chat room. Achievement was measured via biweekly examinations. Students in the positive interdependence condition engaged in significantly more…
Descriptors: Academic Achievement, College Students, Computer Uses in Education, Cooperation