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Johnson, Matthew T.; Lipscomb, Stephen; Gill, Brian – Journal of Research on Educational Effectiveness, 2015
Teacher value-added models (VAMs) must isolate teachers' contributions to student achievement to be valid. Well-known VAMs use different specifications, however, leaving policymakers with little clear guidance for constructing a valid model. We examine the sensitivity of teacher value-added estimates under different models based on whether they…
Descriptors: Teacher Effectiveness, Teacher Influence, Academic Achievement, Models
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Schwartz, Sarah E. O.; Rhodes, Jean E.; Chan, Christian S.; Herrera, Carla – Developmental Psychology, 2011
Associations between youths' relationship profiles and mentoring outcomes were explored in the context of a national, randomized study of 1,139 youths (54% female) in geographically diverse Big Brothers Big Sisters school-based mentoring programs. The sample included youths in Grades 4-9 from diverse racial and ethnic backgrounds, the majority of…
Descriptors: Mentors, Volunteers, Student Diversity, Disadvantaged Youth
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Black, Sally; Washington, Ericka – ERS Spectrum, 2008
The Olweus Bullying Prevention Program (BPP) is an internationally recognized school-based bullying prevention program. This project sought to evaluate pilot implementation of the program in one urban district using fidelity of implementation, bullying incident density (BID), student surveys, and serious incident reports as process and outcome…
Descriptors: Urban Schools, Bullying, Prevention, At Risk Students