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Download full textDe La Rue, Lisa; Polanin, Joshua R.; Espelage, Dorothy L.; Pigott, Terri D. – Campbell Collaboration, 2014
Background: The incidence of psychological, physical, and sexual violence in intimate dating relationships has a significant impact on young people. These issues are of great concern to researchers, educators, and administrators who strive to help youth be happy and healthy. This review focused on prevention and intervention efforts implemented in…
Descriptors: Dating (Social), Violence, Intimacy, Program Effectiveness
Willson, Victor L.; Putnam, Richard R. – 1979
A meta-analysis of 29 separate studies investigating pretest effects was conducted. Outcomes of the studies (achievement gains or attitude improvements) were computed as standardized differences between pretested and non-pretested groups. Eleven other variables were coded for each outcome. Initial descriptive statistics were indicative of…
Descriptors: Achievement Gains, Attitude Change, Control Groups, Experimental Groups
Direct linkBloom, Howard S.; Richburg-Hayes, Lashawn; Black, Alison Rebeck – MDRC, 2005
This paper examines how controlling statistically for baseline covariates (especially pretests) improves the precision of studies that randomize schools to measure the impacts of educational interventions on student achievement. Part I of the paper introduces the concepts, issues, and options involved. Parts II and III present empirical findings…
Descriptors: Program Effectiveness, Reading Achievement, Mathematics Achievement, Research Methodology
