Cluster randomized control trials often incorporate a longitudinal component where, for example, students are followed over time and student outcomes are measured repeatedly. Besides examining how intervention effects induce changes in outcomes, researchers are sometimes also interested in exploring whether intervention effects on outcomes are…

Single subject (SS) designs are popular in educational and psychological research. There exist several statistical techniques designed to analyze such data and to address the question of whether an intervention has the desired impact. Recently, researchers have suggested that generalized additive models (GAMs) might be useful for modeling…

This paper concerns the identification of teaching strategies that enhance the development of 4th grade students' experimental design skills at a public primary school in Argentina. Students' performance in the design of relevant experiments was evaluated before and after an eight-week intervention compared to a control group, as well as the…

A growing body of evidence has highlighted an association between a lack of access to nutritious, affordable food (e.g., through full-service grocery stores [FSGs]), poor diet, and increased risk for obesity. In response, there has been growing interest among policy makers in encouraging the siting of supermarkets in "food deserts," that…

In the contentious debate over the use of randomized clinical trials (RCTs) in education research, little attention has been given to how methodological issues arise and/or are resolved in the implementation of random assignment. Following a review of the methodological-theoretical literature on RCTs and alternative research designs, this article…

Recent discussions about the conduct of community interventions suggest the importance of developing more comprehensive theorizing about their nature and effects. The present study is an effort to infer how community interventions are theorized by the way they are represented in the peer-reviewed scholarly literature. A coding of a random sample…

Background: There is evidence showing that fundamental movement skills and physical activity are related with each other. The ability to perform a variety of fundamental movement skills increases the likelihood of children participating in different physical activities throughout their lives. However, no fundamental movement skill interventions…

In anticipation of the impending revision of the Publication Manual of the American Psychological Association, APA's Publications and Communications Board formed the Working Group on Journal Article Reporting Standards (JARS) and charged it to provide the board with background and recommendations on information that should be included in…

The present study utilized a short-term longitudinal research design to model the relationship between shyness-anxiousness and receptive language skills. Hypotheses regarding the direction of the causal relationship, mediation, and moderation were evaluated. Subjects included 340 Head Start attendees from primarily English- and Spanish-speaking…

Communities That Care (CTC) is a prevention system designed to reduce adolescent substance use and delinquency through the selection of effective preventive interventions tailored to a community's specific profile of risk and protection. A community-randomized trial of CTC, the Community Youth Development Study, is currently being conducted in 24…

Objectives: Substance exposed infants present a major challenge to child welfare and public health systems. Prenatal substance exposure and continued substance abuse in the home are associated with a wide range of adverse social, emotional, and developmental outcomes. The objective of the current study is to evaluate the use of recovery coaches in…

Suggests that designing home-based interventions as longitudinal development research (rather than outcome evaluation) can provide valuable knowledge about ecological factors that affect the development of competence in parents and children and about effective ways to support families. (Author/MP)

This article presents a review of knowledge regarding post-traumatic stress disorder (PTSD) in women experiencing intimate partner violence. Knowledge related to the prevalence and predictors of PTSD in battered women, the association between PTSD and physical health, and the emerging science regarding PTSD and physiological and immune parameters…

A repeated measures design was used to assess the effects of a methadone maintenance program in several California locations. Subjects were 720 Chicano and Anglo men and women participating in rehabilitation programs for heroin addicts. The subjects were interviewed between 1978-1981, and the average follow-up time after initial treatment was 4-6…

Children spend more time in school than in any social institution outside the home. And schools probably exert more influence on children's development and life chances than any environment beyond the home and neighbourhood. The purpose of this book is to document some important ways schools influence children's development and to describe various…