This study establishes a socio-demographic theory of international development derived from selected classical and contemporary sociological theories. Four hypotheses are tested: (1. population growth's effect on development depends on age-structure; (2. historic population density (used here as an indicator of preindustrial social complexity)…

Co-rumination, the social process of frequently discussing and rehashing problems with peers, is hypothesized to increase risk for depression, particularly for girls. Although there is growing evidence for a relation between co-rumination and depressive symptoms in youth, it remains unclear whether these results generalize to diagnosable episodes…

Null distributions of permutation tests for two-sample, paired, and block designs are simulated using the R statistical programming language. For each design and type of data, permutation tests are compared with standard normal-theory and nonparametric tests. These examples (often using real data) provide for classroom discussion use of metrics…

This paper describes three spreadsheet exercises demonstrating the nature and frequency of type I errors using random number generation. The exercises are designed specifically to address issues related to testing multiple relations using correlation (Demonstration I), t tests varying in sample size (Demonstration II) and multiple comparisons…

This study attempted to replicate Miller's (2007) finding that a bilinear domain-specific model of Asian American acculturation demonstrated superior model fit when compared to unilinear and bilinear domain-generic models. Current confirmatory factor analytic tests of competing acculturation models in a cross-validation sample of 306 participants…

Teaching world cultures in the middle-level geography classroom presents challenges both because of the complexity of culture and because of the characteristics of students of this age. One effective way to teach about a culture is through the use of cultural artifacts. This article discusses how to collect and use cultural artifacts in the…

We hypothesize that people at risk of exclusion from groups will engage in actions that can socially reconnect them with others and test the hypothesis in four studies. We show that participants at risk of exclusion reciprocated the behavior of an unknown person (Study 1a) and a potential excluder (Study 1b) more compared to two control groups…

Neuroimaging and behavioral studies have revealed involvement of the brain's motor system in language comprehension. The Linguistic-Focus Hypothesis [Taylor, L. J., & Zwaan, R. A. (2008). Motor resonance and linguistic focus. "Quarterly Journal of Experimental Psychology,61", 869-904.] postulates that engagement of the motor system during language…

In an introductory research methods course, students often develop research questions and hypotheses that are vague or confusing, do not contain measurable concepts, and are too narrow in scope or vision. Because of this, the final research projects often fail to provide useful information or address the overall research problem. A Lesson Study…

The purpose of this study is to investigate the effect of age on learning English in Saudi Arabia. It aims at encouraging the learning of English as a foreign language at an early age in KSA. The populations of the study are English language teachers and Saudi students in elementary schools compared with intermediate school students in Dawadmi…

This study examined academic staff utilization of Information and Communication Technology (ICT) in knowledge creation in universities in Cross River State. The study was guided by two research questions and one hypothesis. A questionnaire was developed, validated and used for data collection from a sample of 300 academic staff. Descriptive…

The level of satisfaction and effectiveness of 3D virtual learning environments were examined. Additionally, 3D virtual learning environments were compared with face-to-face learning environments. Students that experienced higher levels of flow and presence also experienced more satisfaction but not necessarily more effectiveness with 3D virtual…

Background: It is well documented that as youth develop into adolescence, conflict with their parents increases. Unmanaged conflicts can have deleterious effects on youth health and development. Open parent-child communication has been found to be protective against a child's involvement in health-risk behaviors. The purpose of this study was…

The purpose of this study was to investigate sources of resistance to burnout in secondary teachers. For the purpose of this study secondary teachers were defined as teachers employed in grades 9-12 with 0-5 years of teaching experience employed in north Louisiana schools. Sources of resistance to burnout was researched in three investigative…

When children leave school for the very last time without receiving a high school diploma, they do so quietly. For them there is no fanfare, no bells, no pomp and circumstances--it is a "shameful walk" of despair and of dreams lost. For them it is, "the end of the line on a train to nowhere." The purpose of this sequential…