Background: Winning and losing have consistently been used as one criterion upon which to evaluate coaches. Since winning coaches have long been thought of as knowledgeable and effective at providing instruction, researchers have often studied coaches who have obtained a high winning percentage. While researchers know some about the behaviors and…

Background: A comprehensive review of the design principles and methodological approaches that have been used to make inferences from the research on disasters in children is needed. Objective: To identify the methodological approaches used to study children's reactions to three recent major disasters--the September 11, 2001, attacks; the…

In this article we discuss clinical workplace learning using a dual approach: a theoretical one and an empirical one. Drawing on the philosophical work of Aristotle, Polanyi and Schön we posit that the "knowing 'and' acting" underpinning day-to-day medical practice is personal and embraces by nature a tacit dimension.…

In this work we use research from science education on teacher framing and work from mathematics education on teacher noticing to develop new approaches to modeling teacher cognition. The framing literature proposes a dynamic cognitive model of teaching in which teacher epistemological framing, or moment-to-moment understanding of what is going on…

Classroom observations are sometimes a challenging form of data collection. Not only are interpretations of those observations subject to the researcher's theoretical lens, but communication between the researcher and the teacher is often delayed until well after the observed events. This article reports research that focused on the pedagogical…

Many students probably know something about space from playing computer games or watching movies and TV shows. Teachers can expose them to the real thing by launching their experiments into near space on a weather balloon. This article describes how to use high-altitude ballooning (HAB) as a culminating project to a chemistry unit on experimental…

This paper employs meta-analysis to determine the influence of computer-based scaffolding characteristics and study and test score quality on cognitive outcomes in science, technology, engineering, and mathematics education at the secondary, college, graduate, and adult levels. Results indicate that (a) computer-based scaffolding positively…

Researchers have become increasingly interested in programs' main and interaction effects of two variables (A and B, e.g., two treatment variables or one treatment variable and one moderator) on outcomes. A challenge for estimating main and interaction effects is to eliminate selection bias across A-by-B groups. I introduce Rubin's causal model to…

Recent guidance on the treatment of missing data in experiments advocates the use of sensitivity analysis and worst-case bounds analysis for addressing non-ignorable missing data mechanisms; moreover, plans for the analysis of missing data should be specified prior to data collection (Puma et al., 2009). While these authors recommend only that…

Covariate adjustment can increase the precision of estimates by removing unexplained variance from the error in randomized experiments, although chance covariate imbalance tends to counteract the improvement in precision. The author develops an easy measure to examine chance covariate imbalance in randomization by standardizing the average…

The accumulation of scientific knowledge greatly depends upon the critical review of experimental findings by ones peers. In single case design research, experimenters present findings with graphical displays of data and narrative description of a visual analysis. To aid in efficient and accurate description of experimental findings, the research…

Research Findings: Research with young children is a complex enterprise and often fraught with ethical and practical dilemmas. This paper seeks to discuss the experience of an Australian early childhood academic undertaking research with children 3 to 6 years of age. It draws upon a series of projects that examine young children's standpoints on…

The study aimed to determine the effect of the implementation of the program "Manage your Talent" on assertive communication and teamwork competences. A quasi-experimental research design was used with pretest - intervention - post-test with control group. The sample included 28 supervisors from a private company, 13 in the experimental…

Effective knowledge translation processes are critical for the development of evidence-based public health policy and practice. This paper reports on the design and implementation of an innovative approach to knowledge translation within a mixed methods study on lay involvement in public health programme delivery. The study design drew on…

In recent years, more and more researchers in science education have been turning to the practice of combining qualitative and quantitative methods in the same study. This approach of using mixed methods creates possibilities to study the various issues that science educators encounter in more depth. In this content analysis, I evaluated 18…