The purpose of this study was twofold: (a) to examine and document the role of personal influence in the history of community psychology, and (b) to measure the field's inclusion of traditionally marginalized populations. In addition to presenting visually the genealogy of community psychology, results suggest that people have mattered in the…

The influence of teachers' qualifications on their teaching practice has been subject to debate. Literature reviews do not settle these debates, partly because the literature is uneven and partly because reviews capture only narrow slices of literature. In particular, many reviews eliminate qualitative studies. Yet without examining qualitative…

Objective: The authors assessed associations between body weight perception and weight loss strategies. Participants: They randomly selected male and female college students (N = 38,204). Methods: The authors conducted a secondary data analysis of the rates of weight loss strategies and body weight perception among students who completed the…

This article examines the use of media in the construction of a "new" language for children. We studied how children acquire and use media literacy skills through their engagement in an educational art project. This media literacy project is rooted in the realm of audiovisual media, within which children's sound and visual worlds are the…

Improvements in motor sequence performance have been observed after a delay involving sleep. This finding has been taken as evidence for an active sleep consolidation process that enhances subsequent performance. In a review of this literature, however, the authors observed 4 aspects of data analyses and experimental design that could lead to…

Mediation and moderation are two theories for refining and understanding a causal relationship. Empirical investigation of mediators and moderators requires an integrated research design rather than the data analyses driven approach often seen in the literature. This paper described the conceptual foundation, research design, data analysis, as…

This article describes the result of a recent report from the National Collegiate Athletic Association (NCAA) which has raised the hackles of some college officials who charge that the data are incomplete and that the NCAA has clouded the real fiscal value of sports programs. The study revealed the growing financial support colleges provide to…

Does gender make a difference in the way politicians speak and are spoken to in public? This paper examines perspective in three television interviews and two radio interviews with Bill Clinton in June 2004 and in three television interviews and two radio interviews with Hillary Clinton in June 2003 with the same interviewers. Our perspectival…

I describe how data pooling and data visualization can be employed in the first-semester general chemistry laboratory to introduce core statistical concepts such as central tendency and dispersion of a data set. The pooled data are plotted as a 1-D scatterplot, a purpose-designed number line through which statistical features of the data are…

Optimization of a chromatographic separation within the time constraints of a laboratory session is practically impossible. However, by employing a HPLC simulator, experiments can be designed that allow students to develop an appreciation of the complexities involved in optimization procedures. In the present exercise, a HPLC simulator from "JCE…

In this article, the author shares a current analysis of data that complements findings from earlier, related research that confirms the emotional aspects of reading experiences. The data from the earlier study is based upon comments by graduate students in online discussion groups, where they share their thoughts about the professional readings…

Score limitation at the top of a scale is commonly termed "ceiling effect." Ceiling effects can lead to serious artifactual parameter estimates in most data analysis. This study examines the consequences of ceiling effects in longitudinal data analysis and investigates several methods of dealing with ceiling effects through Monte Carlo simulations…

The literature that is available on the topic of representations in mathematics is vast. One commonly discussed item is graphical representations. From the history of mathematics to modern uses of technology, a variety of graphical forms are available for middle school students to use to represent mathematical ideas. The ideas range from algebraic…

The purpose of this research was to examine the effects of missing data on person-model fit and person trait estimation in tests with dichotomous items. Under the missing-completely-at-random framework, four missing data treatment techniques were investigated including pairwise deletion, coding missing responses as incorrect, hotdeck imputation,…

The authors conducted 2 studies to identify the vocal acoustical correlates of unresolved anger and sadness among women reporting unresolved anger toward an attachment figure. In Study 1, participants (N = 17) were induced to experience and express anger then sadness or sadness then anger. In Study 2, a 2nd group of participants (N = 22) underwent…