This chapter presents a critical analysis of the concept of scaffolding as it has evolved over time. The analysis differs from existing reviews (Stone, 1998a; van de Pol, Volman & Beishuizen, 2010) in at least two ways. First, rather than assuming that scaffolding is a metaphor that needs to be formalized with a normative framework, we closely…

Community colleges increase college access--extending postsecondary educational opportunities to students who otherwise may not have access, but they also exhibit low rates of program completion and transfer to four-year colleges. Sociological research on community colleges focuses on the tension between increasing educational opportunity and…

Recent advances in cognitive science and psychometrics have expanded the possibilities for the next generation of literacy assessment as an integrated domain (Bennett, 2011a; Deane, Sabatini, & O'Reilly, 2011; Leighton & Gierl, 2011; Sabatini, Albro, & O'Reilly, 2012). In this paper, we discuss four key areas supporting innovations in…

AutoTutor is a natural language tutoring system that has produced learning gains across multiple domains (e.g., computer literacy, physics, critical thinking). In this paper, we review the development, key research findings, and systems that have evolved from AutoTutor. First, the rationale for developing AutoTutor is outlined and the advantages…

Recent research on fractions has broadened and deepened theories of numerical development. Learning about fractions requires children to recognize that many properties of whole numbers are not true of numbers in general and also to recognize that the one property that unites all real numbers is that they possess magnitudes that can be ordered on…

This paper uses a social-ecological lens to examine self-determination research, attempting to organize what is known (and unknown) about contextual factors that have the potential to impact the development and expression of self-determined behavior in individuals with disabilities across multiple ecological systems. Identifying and categorizing…

We explore the use of instrumental variables (IV) analysis with a multi-site randomized trial to estimate the effect of a mediating variable on an outcome in cases where it can be assumed that the observed mediator is the only mechanism linking treatment assignment to outcomes, as assumption known in the instrumental variables literature as the…

Identifying the types of mathematics content knowledge that are most predictive of students' long-term learning is essential for improving both theories of mathematical development and mathematics education. To identify these types of knowledge, we examined long-term predictors of high school students' knowledge of algebra and overall mathematics…

The comparison of the Russian and American experience regarding media violence, standards for rating Russian media programs, and a course of study on media violence for students will have a significant impact upon Russian society, will raise Russian societal and governmental attention to the infringement of the Rights of the Child on the Russian…

The article describes an application of the Organizational Climate Descriptive Questionnaire (OCDQ) in the author's dissertation. He explored the possible relationships among [Fred] Fiedler's assessment of psychological distance of the leader (the principal) and the organizational climate of schools as assessed by the then recently developed OCDQ…