Exposure to violent video games and aggression in German adolescents: a longitudinal analysis

The relationship between exposure to violent electronic games and aggressive cognitions and behavior was examined in a longitudinal study. A total of 295 German adolescents completed the measures of violent video game usage, endorsement of aggressive norms, hostile attribution bias, and physical as well as indirect/relational aggression cross‐sectionally, and a subsample of N=143 was measured again 30 months later. Cross‐sectional results at T1 showed a direct relationship between violent game usage and aggressive norms, and an indirect link to hostile attribution bias through aggressive norms. In combination, exposure to game violence, normative beliefs, and hostile attribution bias predicted physical and indirect/relational aggression. Longitudinal analyses using path analysis showed that violence exposure at T1 predicted physical (but not indirect/relational) aggression 30 months later, whereas aggression at T1 was unrelated to later video game use. Exposure to violent games at T1 influenced physical (but not indirect/relational) aggression at T2 via an increase of aggressive norms and hostile attribution bias. The findings are discussed in relation to social‐cognitive explanations of long‐term effects of media violence on aggression. Aggr. Behav. 35:75–89, 2009. © 2008 Wiley‐Liss, Inc.     

Work Stress and Comfort in University Faculty: Do Gender and Academic Field Matter?

University faculty face stressors, including multiple roles, institutional pressures, and varying student demands, which may differ by gender and across fields. Using the questionnaire variant of a convergent mixed-methods design, we examined whether self-reported work stress and comfort differed by gender and academic field gender stereotype in participants from two universities. Results showed that female faculty reported more quantitative role overload, qualitative role overload, and career development stress than male faculty regardless of field. Qualitative themes centered on institutional barriers and unique pressures for women, although these experiences varied by field. Implications, limitations, and future research for employment counselors are explored.     

Ambivalent sexism: a tool for understanding and improving gender relations in organizations

This study tested predictions regarding ambivalent sexism, previously studied cross-culturally, here "within-culturally", between groups from different organizational settings. Based on three samples (334 adults in general, 744 industrial employees, and 189 high school students), completing a Swedish version of the Ambivalent Sexism Inventory (ASI), the results revealed that men scored higher on hostile and benevolent sexism than women, and high school students scored higher than both adult samples on both forms of sexism. The results generally confirmed the predictions; the gender gap in benevolent sexism decreased as a function of increasing levels of general sexism and the correlation between hostile and benevolent sexism decreased with higher levels of general sexism. In fact, the groups scoring highest on general sexism displayed significant negative correlations indicating a polarized ideology of women among these groups. Implications, both theoretical and practical, derived from these results are discussed.     

Executive function tests in early‐onset psychosis: which one to choose?

People with schizophrenia exhibit executive functioning deficits, an area well investigated in the adult onset schizophrenia (AOS) group, but far less so in early-onset schizophrenia (EOS). Since EOS in general seems to exhibit poorer cognitive functions and is clinically more compromised than AOS, choice of efficient and sensitive assessment measures is not necessarily the same within the two groups. The MATRICS Consensus Cognitive Battery was developed for adults when studying treatment effects and uses Mazes (Neuropsychological Assessment Battery [NAB]) to assess executive functioning. We tested 31 adolescents with schizophrenia spectrum disorders and 66 healthy controls in order to examine how Mazes compares to two other commonly used tests to measure executive functioning, D-KEFS Color Word Interference Test (Stroop) and the Wisconsin Card Sorting Test (WCST). Significant discriminating power was found for all three measures. Patients performed 0.8-1.5 SD below controls with Stroop as the most sensitive measure, followed by Mazes and WCST. Mazes was selected by the MATRICS to assess treatment effects in AOS and is shown to be able. We find the instrument also able to separate adolescent patients from controls and thus, it appears a sensible choice in clinical settings. If a more elaborated neuropsychological evaluation of the executive functioning domain is needed, Stroop should be considered a complementary test.     

Validity of the Modified Child Psychopathy Scale for Juvenile Justice Center Residents

Adult psychopathy has proven to be an important clinical and forensic construct, but much less is known about juvenile psychopathy. In the present study, we examined the construct validity of the self report modified Child Psychopathy Scale mCPS; Lynam (Psychological Bulletin 120:(2), 209-234, 1997) in a sample of 57 adolescents residing in a Dutch juvenile justice center, aged between 13 and 22?years. The mCPS total score was reliably related to high externalizing problems, low empathy, high anger and aggression, high impulsivity, high (violent) delinquency, and high alcohol/drug use. Unique relations were found for the antisocial-impulsive (mCPS Factor 2), but not the callous-unemotional facet of psychopathy (mCPS Factor 1). Our findings support the validity of the mCPS in that it encompasses the antisocial-impulsive facet of psychopathy, but it is less clear whether the mCPS sufficiently captures the affective-interpersonal facet of psychopathy.     

Segmentation of Worked Examples: Effects on Cognitive Load and Learning

Two ways to improve worked examples are investigated: presenting them in a segmented format (i.e., in pieces separated by blank lines) and instructing students to segment them actively (i.e., students must divide the examples in pieces). Segmented examples are expected to support learning because they show which information elements belong together. Learners might also be encouraged to think about which information elements belong together when they are instructed to actively segment, but on the negative side, this is an additional task that might impose extra cognitive load without facilitating learning. Results showed that students in the actively segmenting condition invested more effort in learning than students in the other conditions without performing better. Furthermore, studying segmented examples required less effort to achieve equal learning outcomes than studying nonsegmented ones. So, presenting learners with segmented examples improved the efficiency of the learning process, whereas instructing them to actively segment decreased this efficiency. Copyright © 2011 John Wiley & Sons, Ltd.     

Body image satisfaction among Norwegian adolescents and young adults: a longitudinal study of the influence of interpersonal relationships and BMI

This study used a latent growth curve modeling approach to examine body image satisfaction in 1132 Norwegian adolescent and adult males and females measured at six times between ages 13 and 30. An additional model examined the long term influence of parent-child relationship, peer relationship (both relationships assessed at age 13), and BMI (measured at each interval) to the patterns of change. The results showed a linear growth in body image satisfaction through adolescence followed by a stabilizing of the latent curve in adulthood for both genders. There were gender and developmental variations in the relative contributions of parents and peers for the slope and quadratic growth and in the contribution of BMI to body image satisfaction. When controlling for BMI, initial parent-child relationships and peer relationship predicted the variance in slope growth for males. Parent-child relationship predicted quadratic growth for males. Among females, only initial peer relationships predicted linear growth. No effect was found for quadratic growth. BMI had an additional negative effect on body image satisfaction during adulthood.     

Using segmentation to support the learning from animated soccer scenes: An effect of prior knowledge

ObjectivesWe used a cognitive load perspective to investigate the effects of levels of learner expertise and different forms of segmentation in learning from animated soccer scenes.MethodExpert and novice players (N = 48) completed a recall reconstruction-test and rated their invested mental effort after studying a continuous animation, a macro-step and a micro-step segmented animation.ResultsFindings demonstrated an expertise reversal effect for segmentation. It positively affected learning outcomes of novices but not experts (even though they still invested less mental effort and repeated the animation less often in the two segmented conditions). Additionally, novices benefited more from micro-step segmentation than from macro-step segmentation, while experts performed at the same level with both forms of segmentation.ConclusionsStudy results suggested that adapting instructional animation formats to players with different levels of expertise should be a crucial part of successful training.