Experiments that assign intact groups to treatment conditions are increasingly common in social research. In educational research, the groups assigned are often schools. The design of group-randomized experiments requires knowledge of the intraclass correlation structure to compute statistical power and sample sizes required to achieve adequate…

This evaluation of the 1989-90 Cumulative Deficits in Basic Skills Program (CDBSP) in Washington (District of Columbia) public schools uses achievement gains on the Comprehensive Test of Basic Skills (CTBS) and teacher use of specially developed instructional materials to assess program effectiveness. Information was gathered from an analysis of…

Through the nineteen-forties, fifties, and up to the mid-sixties, achievement test scores steadily increased. Since then, many test scores drop. The reported test score declines are more dramatic in recent years and most evident for higher grades. They are specially pronounced in verbal tests, but hold for nearly all tested areas. Specially:…

Researchers have observed that academic achievement of socioeconomically disadvantaged and minority group children declines relative to norms of performance as the number of years in school increases. Less documented is the relationship of student self concept to achievement. A study underway at the University of Texas proposes to address both…

Students perceive low achievers as the recipients of more frequent negative feedback and teacher direction and of more work and rule orientation than high achievers. High achievers are seen as receiving higher expectations and more opportunity and choice than low achievers. (PN)

"Helping One Student to Succeed" (HOSTS) is a nationally validated Chapter 1 exemplary program adopted by 24 schools in the Portland School District (Oregon) during 1984-85. Designed to help low performers learn to read by providing individualized instruction on a one-to-one basis through the use of volunteer tutors, HOSTS served 833…

This study evaluated a Columbus (Ohio) Public Schools summer remedial reading and language mechanics skills program for participants in a job training program. The Summer Academic Skills Enhancement Program provided clients with the skills required for employment into entry-level positions in 160 curriculum hours. Seventy-one clients were…

Prescription Learning is a multi-media diagnostic prescriptive program providing individualized instruction using six instructional strategies. Nine elementary schools and four middle schools in the Portland Public School District used Prescriptive Learning to provide supplemental reading and math instruction to low-performing students. Selected…

A longitudinal study was initiated in the Tuscon Unified School District (TUSD) to follow the achievement of seventh and ninth grade Title I students: (1) to investigate the suitability and difficulty of the Total Reading Test of the Metropolitan Achievement Test (MAT) and the Comprehensive Tests of Basic Skills (CTBS); (2) to compare the gains in…

The Instructional Aide Program of the Columbus (Ohio) Public Schools trained instructional aides to provide direct instruction to selected underachieving pupils in the classroom setting. The aides attended in-service training sessions and were provided with supplementary materials and numerous instructional activities in the areas of oral…