Reactive and proactive aggression in childhood: Relations to peer status and social context dimensions

Although there has been an accumulation of evidence to suggest a link between peer-directed aggression and social rejection, little attention has been given to the relations between specific subtypes of aggressive behavior and social rejection. The purpose of this investigation was to examine the relations between two subtypes of aggressive behavior (reactive and proactive aggression) and children's classroom peer status. The reciprocity of each of these subtypes of aggressive behavior and the social contexts in which these behaviors occur were also examined. Assessments of each of these forms of aggression among 70 boys (ages 5 and 6) were conducted using direct observations and teacher ratings. In general, directing reactive aggressive behavior toward peers was associated with social rejection, while utilization of instrumental aggression was positively related to peer status. The findings also indicated that directing proactive forms of aggression toward peers was related to being the target of proactive aggression. Finally, among older boys, both subtypes of aggression were more likely to occur during rough play than during any other type of play activity.     

Health locus of control and voluntary use of seat belts among high school students

An 18-item Multidimensional Health Locus of Control scale published by Wallston, Wallston, and DeVellis in 1978 was given to 124 high school students, 59 of whom wore seat belts and 65 of whom did not. It was hypothesized that nonseat-belt wearers were more likely to be externally oriented than seat-belt wearers but this was not confirmed. Strong scoring internal subjects were not found in this sample of students.     

Health locus of control of joggers and nonexercisers

To gain a better understanding of why some people engage in regular leisure-time physical exercise while others remain sedentary, the Multidimensional Health Locus of Control scale was distributed to 123 younger joggers and 93 nonexercisers. Analysis of the responses indicated that the joggers scored significantly higher on the internal subscale than did the nonexercisers. No significant differences were found on the Chance and Powerful Others subscales. The disparity of these results from those of other studies of the relationship between locus of control and exercise suggest that an exercise specific locus of control scale needs to be developed. The confound of age with exercise and locus of control requires clarification.     

SPATIAL COGNITION AND GENDER Instructional and Stimulus Influences on Mental Image Rotation Performance

Recent research has demonstrated that "sex differences" on mental image rotation (MIR) tasks may be attenuated through manipulations of instructional or stimulus conditions. The interaction of these variables was examined in two experiments. In the first, subjects received instructions that emphasized or de-emphasized the spatial nature of the MIR task. In the second, instructions emphasized the use of MIR abilities in stereotypically "masculine" or "feminine" occupations. The relevant interactions were significant in both experiments. Men performed at higher levels than women in the spatial instruction conditions, but no sex differences were observed under nonspatial instructions. These effects were further shown to be mediated by stimulus type; simpler or more familiar stimuli were less deleterious to the performance of women. These results add to the evidence that instructional and stimulus effects may exacerbate or eliminate sex differences in spatial cognition.     

The effect of exercise absence on affect and body dissatisfaction as moderated by obligatory exercise beliefs and eating disordered beliefs and behaviors

AIM: Research suggests that exercise absence is frequently associated with greater guilt and negative affect, particularly when obligatory exercise beliefs and eating disordered psychopathology are considered. Two separate studies used ecological momentary assessment (EMA) to examine differences in mood on exercise and non-exercise days and the moderating impact of obligatory exercise beliefs and eating disordered beliefs and behaviors. METHOD: Both studies recruited female university students who endorsed frequent exercise behavior and study two also recruited based on level of eating disordered psychopathology. Participants completed the Obligatory Exercise Questionnaire at baseline and EMA measures of affect and exercise behavior for approximately one week. Study two participants also completed measures of body dissatisfaction and cognitions. RESULTS: Results of study one suggest that obligation to exercise appears to have a greater impact on general level of affect than does exercise absence or the interaction of these two. In addition, in study two, eating disorder symptomatology was significantly associated with affect and cognition while exercise absence and obligatory exercise beliefs were not. CONCLUSIONS: The present studies suggest that the absence of exercise is not associated with significant changes in affect or cognitions. However, obligation to exercise and eating disorder symptomatology do impact affect and cognitions.     

Meta‐analysis methods for risk differences

The difference between two proportions, referred to as a risk difference, is a useful measure of effect size in studies where the response variable is dichotomous. Confidence interval methods based on a varying coefficient model are proposed for combining and comparing risk differences from multi‐study between‐subjects or within‐subjects designs. The proposed methods are new alternatives to the popular constant coefficient and random coefficient methods. The proposed varying coefficient methods do not require the constant coefficient assumption of effect size homogeneity, nor do they require the random coefficient assumption that the risk differences from the selected studies represent a random sample from a normally distributed superpopulation of risk differences. The proposed varying coefficient methods are shown to have excellent finite‐sample performance characteristics under realistic conditions.     

Lineup Member Similarity Effects on Children's Eyewitness Identification

To date, research investigating the similarity among lineup members has focused on adult eyewitnesses. In the present research, children made identifications from lineups containing members of lower or higher similarity to a target person. In Experiment 1, following a live interaction, children's (6–14 years) correct identification rate was reduced in higher‐similarity relative to lower‐similarity lineups. In Experiment 2, children (6–12 years) and adults watched a video containing a target person. Again, higher‐similarity lineup members reduced children's correct identifications; however, similarity had no effect on adults' correct identification rate. Although children benefited from lower‐similarity lineups when the target was present, lower‐similarity lineups generally increased misidentifications of an innocent suspect when the target was absent. Thus, increasing similarity in lineups for children had a cost on target‐present lineups and a benefit on target‐absent lineups. Copyright © 2014 John Wiley & Sons, Ltd.     

Students' Journey Through a Trauma Studies Educational Program: A Northern Irish Perspective

This article presents the findings of a qualitative research study that explored the experiences of part-time students who completed a BSc(Hons) trauma studies program in Northern Ireland. Data collection involved semistructured interviews with seven students. Findings indicated a journey through the program during which students experienced both challenges and opportunities for development. Such challenges included responses to emotive content and barriers to sharing in classroom-based dialogues. Moreover, participants felt the program enhanced their knowledge as well as the supportive services they provided to those who had experienced a trauma. Findings suggest that participants who had experienced a personal trauma appeared to be drawn to this program.