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Are Teacher Effects Larger in Small Classes?
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Konstantopoulos, Spyros; Sun, Min – School Effectiveness and School Improvement, 2014
Teachers spend most of their time in school in classrooms, and their instruction and teaching practices may be affected by classroom context such as class size. We examine whether teacher effects interact with classroom context such as class size. Specifically, we seek to determine whether teacher effects are more pronounced in small classes than…
Descriptors: Small Classes, Teacher Effectiveness, Class Size, Effect Size
Comparative Effectiveness of WestEd's iRAISE Professional Development: An Interim Report of a Randomized Experiment in Michigan and Pennsylvania
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Schellinger, Adam M.; Toby, Megan; Jaciw, Andrew P.; Zacamy, Jenna – Empirical Education Inc., 2015
Empirical Education Inc. is the independent evaluator of WestEd's 2012 i3 Development grant for Internet-based Reading Apprenticeship Improving Science Education (iRAISE). This interim report provides an update on the progress of the randomized control trial (RCT) during the 2014-2015 school year. The RCT measures the impact of iRAISE on student…
Descriptors: Comparative Analysis, Program Effectiveness, Randomized Controlled Trials, Experimental Programs
Testing Conceptual Frameworks of Nonexperimental Program Evaluation Designs Using Structural Equation Modeling
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Adedokun, Omolola A.; Childress, Amy L.; Burgess, Wilella D. – American Journal of Evaluation, 2011
A theory-driven approach to evaluation (TDE) emphasizes the development and empirical testing of conceptual models to understand the processes and mechanisms through which programs achieve their intended goals. However, most reported applications of TDE are limited to large-scale experimental/quasi-experimental program evaluation designs. Very few…
Descriptors: Feedback (Response), Program Evaluation, Structural Equation Models, Testing
Does the Elimination of Prerequisites Affect Enrollment and Success?
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Abou-Sayf, Frank K. – Community College Review, 2008
The impact of an experimental, one-semester suspension of mathematics and English prerequisites from 12 courses is investigated. Data on enrollment, student performance, and instructor opinions are analyzed for the total group, and results concerning English versus mathematics prerequisites are compared. Implications for further research on the…
Descriptors: Prerequisites, Mathematics Instruction, English Instruction, Experimental Programs
Augmentative and Alternative Communication Interventions for Persons with Developmental Disabilities: Narrative Review of Comparative Single-Subject Experimental Studies
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Schlosser, Ralf W.; Sigafoos, Jeff – Research in Developmental Disabilities: A Multidisciplinary Journal, 2006
Augmentative and alternative communication (AAC) as an area of clinical and educational practice involves a myriad of decisions related to the symbols, devices, and strategies from which each client must choose. These decision-making points can be productively informed through evidence from comparative intervention studies. The purpose of this…
Descriptors: Intervention, Developmental Disabilities, Augmentative and Alternative Communication, Comparative Analysis
Ratings of Perceived Exertion of ACSM Exercise Guidelines in Individuals Varying in Aerobic Fitness
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Kaufman, Christopher; Berg, Kris; Noble, John; Thomas, James – Research Quarterly for Exercise and Sport, 2006
The physiological responses of high (HF) and low fit (LF) individuals at given perceived exercise intensities were compared to ranges provided by the American College of Sports Medicine (ACSM). Participants were 7 LF and 8 HF men between the ages of 22 and 26 years. All participants performed a maximum oxygen uptake and lactate threshold test and…
Descriptors: Exercise Physiology, Guidelines, Males, Adults