The mechanisms underlying the poorer serial recall of talker-variable lists (e.g., alternating female-male voices) as compared with single-voice lists were examined. We tested the novel hypothesis that this "talker variability effect" arises from the tendency for perceptual organization to partition the list into streams based on voice…

The authors examine the ecological foundations of the thesis of a "code of honor" as an explanation for southern homicide. Specifically, they consider the effects of indicators of ethnic groups that migrated from herding economies (the Scotch-Irish), cattle and pig herding, and the relative importance of agricultural production across…

The article discusses a three-wave longitudinal study that investigates the relationship between self-control and aggressive and delinquent behavior of early adolescent boys and girls. The sample consists of 1,012 Dutch adolescents (mean age = 12.3) in their first year of secondary education. Structural equation modeling analyses reveal that high…

Hypotheses of population genetics are derived and tested by students in the introductory genetics laboratory classroom as they explore the effects of biotic variables (physical traits of fruit flies) and abiotic variables (island size and distance) on fruit fly populations. In addition to this hypothesis-driven experiment, the development of…

This article examines whether running away from home mediates the link between child maltreatment and later delinquency and victimization in adolescence. Specifically, the authors tested the hypothesis that childhood physical and psychological abuse increase the risk of a child's running away from home by the time of adolescence. Running away from…

Objective: Investigated the relationship between selective and sustained attention and social behavior in children with different degrees of attentional disturbance. Method: Participants were 101 6- to 12-year-old children, including 18 who were diagnosed with Attention Deficit Hyperactivity Disorder (AD/HD), 61 who were clinically referred for…

The main objective of the proposed study was to explore Teacher--Student verbal interaction patterns at tertiary level education in the North West Frontier Province of Pakistan using Flanders' Interaction Analysis system. This study was significant because its findings and conclusions may stimulate teachers to improve their teaching behaviour in…

Most psychology journals now require authors to report a sample value of effect size along with hypothesis testing results. The sample effect size value can be misleading because it contains sampling error. Authors often incorrectly interpret the sample effect size as if it were the population effect size. A simple solution to this problem is to…

This paper examines the hypothesis that grammatical function reanalyses in simple sentences should not be treated as phrase structure revisions, but rather as increased costs in "linking" an argument from a syntactic to a semantic representation. To this end, we investigated whether subject-object reanalyses in German verb-final sentences can be…

Faith schools are popular with parents and feature towards the top of the annual tables of school performance in England based on the government's preferred measures of school outcomes. Academic studies suggest that although the observed differentials between the faith and non-faith sectors at the end of Key Stage 4 are partly explicable in…

Despite its popularity in other countries, like America and Canada, peer editing is considered quite "avant-garde" in the Hong Kong academic community and has never been a common practice in local secondary schools' classrooms. This paper will try to unveil the reasons why a number of Hong Kong English teachers are reluctant to use…

The theoretical argument of the current research is that athletic departments have been effective in attaining their conflicting goals mainly because they have become highly effective in managing institutional rules. Neo-institutionalism (DiMaggio & Powell, 1991), loose coupling (Meyer & Rowan, 1977), and patterns of bureaucracy (Gouldner, 1954)…

Exhibits in informal science institutions, like science centers and museums, are often designed to help people learn, but research showing the immediate impact of experiences with exhibits on understanding is limited. This dissertation tested the hypothesis that the value of first-hand experience with an exhibit is not necessarily in its immediate…

This Action Research project and Pilot Study was designed and implemented to improve students' hypothetical thinking abilities by exploring the possibility that learning and playing the computer game Minesweeper may inherently help improve hypothetical thinking. One objective was to use educational tools to make it easier for students to learn the…

In 2 studies, we investigated victim attributions (Study 1) and outcomes (Study 2) for workplace aggression and sexual harassment. Drawing on social categorization theory, we argue that victims of workplace aggression and sexual harassment may make different attributions about their mistreatment. In Study 1, we investigated victim attributions in…