This article describes the analysis of regression-discontinuity designs (RDDs) using the R packages rdd, rdrobust, and rddtools. We discuss similarities and differences between these packages and provide directions on how to use them effectively. We use real data from the Carolina Abecedarian Project to show how an analysis of an RDD can be…

Suggests that, by looking for commonalities and differences across settings, tasks, working methods, goals, and values, a framework for understanding collaboration can be constructed that preserves the benefits of rich descriptive accounts of collaboration. Emphasizes the importance of multiple definitions and multiple models of collaborative…

Introduces the articles of this special issue focusing on randomized field trials in criminology. In spite of the overall lack of randomized field trials in criminology, some agencies and individuals are able to mount an impressive number of field trials, and these articles focus on their experiences. (SLD)

Discusses ways in which the dialectic between differing approaches to studying, theorizing, and representing collaboration may illuminate issues related to the nature and scope of scholarly inquiry. Contains 15 references. (Author/SLD)

Asserts that this book, drawn from a 1993 conference on memory development, accurately reflects the contemporary status of the field in two ways: (1) its research is matured and specialized; and (2) there are no major theoretical disputes, nor a widely shared new approach, although using microgenetic designs to study cognitive strategy choice…

Reviews the book, "Within Our Reach: Breaking the Cycle of Disadvantage," which takes a new look at research about and programs for disadvantaged young children and their parents. (BB)

In a recent report, Lewis Solmon, Kern Paark, and David Garcia (2001) seek to identify the impact of attending charter schools on student achievement using data from Arizona. Based on a sophisticated statistical analysis, these authors report that charter school attendance increases test score gains of students. This note raises some questions…

Reviews the following books: "Child Care in Context" (Lamb et al., Eds.); "Making Friends in School: Promoting Relationships in Early Childhood" (Ramsay); "The Epigenesis of Mind: Essays on Biology and Cognition" (Carey and Gelman, Eds.); "Moral Maturity: Measuring the Development of Sociomoral Reflection"…

A set of concerns related to home education that is infrequently studied, namely, the content and direction of research in education, is examined. Issues surrounding home education have not been given adequate attention. A sample of home education researchers was gathered by compiling a list of authors who had published in the "Home School…