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Download full textWestrick, Paul A. – ACT, Inc., 2014
The purpose of this study was to determine if validity coefficients for ACT scores and high school grade point average (HSGPA) decayed or held stable over eight semesters of undergraduate study in science, technology, engineering, and mathematics (STEM) fields at civilian four-year institutions, and whether the decay patterns differed from those…
Descriptors: STEM Education, Validity, College Entrance Examinations, Scores
Peer reviewedWestine, Carl; Spybrook, Jessaca – Society for Research on Educational Effectiveness, 2013
The capacity of the field to conduct power analyses for group randomized trials (GRTs) of educational interventions has improved over the past decade (Authors, 2009). However, a power analysis depends on estimates of design parameters. Hence it is critical to build the empirical base of design parameters for GRTs across a variety of outcomes and…
Descriptors: Randomized Controlled Trials, Research Design, Correlation, Program Effectiveness
Wang, Jia; Schweig, Jonathan D.; Herman, Joan L. – National Center for Research on Evaluation, Standards, and Student Testing (CRESST), 2014
Magnet schools are one of the largest sectors of choice schools in the United States. In this study, we explored whether there is heterogeneity in magnet school effects on student achievement by examining the effectiveness of 24 recently funded magnet schools in 5 school districts across 4 states. We used a two-step analysis: First, separate…
Descriptors: Meta Analysis, Success, School Effectiveness, Magnet Schools
Mattern, Krista D.; Marini, Jessica P.; Shaw, Emily J. – College Board, 2013
The current study examined the role of AP® Exam participation and performance on four-year college graduation in four years. Because students who take AP Exams can earn college credit while still in high school, it was expected that AP students would have higher four-year graduation rates. Moreover, it was expected that AP students who earned…
Descriptors: Advanced Placement Programs, Tests, Graduation, Higher Education
