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Hong, Hee Kyung – Education Policy Analysis Archives, 2012
The purpose of this study was to simultaneously examine relationships between teacher quality and instructional time and mathematics and science achievement of 8th grade cohorts in 18 advanced and developing economies. In addition, the study examined changes in mathematics and science performance across the two groups of economies over time using…
Descriptors: Academic Achievement, Teacher Effectiveness, Science Achievement, Program Effectiveness
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Powers, Donald E. – Journal of Educational Measurement, 1985
After adjusting for different background characteristics of students, effects on test scores were related to the length and type of test coaching programs offered. The data suggest that the test item types in the Graduate Record Examination General Test appear to show little susceptibility to formal coaching experiences. (Author/DWH)
Descriptors: Academic Aptitude, Academic Aspiration, Aptitude Tests, College Entrance Examinations