This article examines theoretical and empirical issues related to the statistical power of impact estimates for experimental evaluations of education programs. The author considers designs where random assignment is conducted at the school, classroom, or student level, and employs a unified analytic framework using statistical methods from the…

Children with early-starting conduct problems have a very poor prognosis and exact a high cost to society. The Fast Track project is a multisite, collaborative research project investigating the efficacy of a comprehensive, long-term, multicomponent intervention designed to "prevent" the development of serious conduct problems in high-risk…

This paper presents the results of interviews with staff from 64 community organizations regarding their experiences with service-learners. One of the themes that emerged from the interviews focused on concerns related to short-term service-learning commitments that last a semester or less. We explore the challenges presented to community groups…

As a result of the federal No Child Left Behind Act (NCLB) of 2002, the field of education has seen a heavy emphasis on the use of "scientifically based research" for designing and testing the effectiveness of new and existing educational programs. According to NCLB, when addressing basic cause and effect questions scientifically based…

Sexuality education integrated into math, economics, and computer science classes? Parents participating with teachers and students in working groups to plan sex ed programs in public schools? Eight- to ten-year-olds publishing their own book "Don't Talk to Us about the Stork"? Does this sound utopian? Actually, it is a reality in…

Objective: The purpose of this study was to identify potential determinants of objectively measured physical activity in the "Learning to Enjoy Activity with Friends" (LEAF) study. Design: This study involved a quasi-experimental design and students (N = 116) were assigned to an intervention group (n = 50) or a comparison group (n = 66)…

This paper offers a definition for the word "effective" and then discusses implications of research on the environment in relation to designing effective instruction. Similarities and differences involved in designing effective instruction are presented across four different contexts: K-12, higher education, human services, and…

This report synthesizes findings of five conferences funded by the National Institute of Education (NIE) to plan new Follow Through research. In particular, conference discussions focused on the notion of systematic change; time-on-task as the most promising strategy for success; and encouragement of principal and teacher support for implementing…

This project experimentally evaluated the computer-based instruction (CBI) technology of the PLATO IV system. The approach was to conduct a set of eight research studies in different Navy training application areas. Short titles of the studies were: (1) remedial math, (2) oscilloscope simulation, (3) sine ratio, (4) multimeter simulation, (5)…

Presents the results of a survey of the American Assembly of Collegiate Schools of Business on the role of economics courses in MBA programs. Discovers a slight five-year decline in the number of economics courses. Discusses the relationship between economic course work and the focus of an MBA program. (MJP)

The current study will examine possible contextual effects relative to differences in reading comprehension performance in the state of Florida. While the Reading First (RF) Impact study examined such difference using a regression discontinuity design, the authors are primarily interested in other analytic methods that might answer different…

Prevention programs in schools are one response to youth, community, and family violence. Many of these programs target older children and adolescents. This quasi-experimental study evaluated the preschool curriculum of the Peacemakers program, which was developed by a consortium of social service agencies for implementation in schools. This…

As online courses and programs expand in business schools, it becomes increasingly important to understand the link between students' experiences in these courses and learning outcomes. The study reported here investigates the relationship between students' experiences of flow, a psychological state generally associated with improved task…

"Theory as Method: Small Theories of Treatments," by Mark W. Lipsey, is one of the most influential and highly cited articles to appear in "New Directions for Evaluation." It articulated an approach in which methods for studying causation depend, in large part, on what is known about the theory underlying the program. Lipsey discussed the benefits…

Two studies investigated the advantage and instructional effectiveness of the spatial graphic representation of an English sentence with coordinators over a linear sentential representation in English as a foreign language (EFL) reading settings. Experiment 1, Study 1, examined whether readers studying EFL could better comprehend the sentence--in…