An examination of self-presentational concern of Turkish adolescents: an example of physical education setting

The purpose of this study was to examine self-presentational concern of Turkish adolescents with regard to the gender composition of physical education (PE) class and also to investigate the attitude toward PE and PE class preferences of Turkish adolescents based on this concern. A total of 1,807 eighth-grade students (936 females and 871 males) completed the Attitudes Toward Physical Education Scale and Social Physique Anxiety Scale (SPAS). The findings indicated that although self-presentational concern did not differ according to the gender composition of PE class, there was a significant difference in class preference among adolescents based on this concern with most of the females who had a high self-presentational concern preferring noncoed PE class. Additionally, no significant difference was found in attitude toward PE among self-presentational concern groups. These findings are discussed in relation to the sex composition of PE class and self-presentational concerns of adolescents.     

Self-reported versus measured weight and height by adolescent girls: a Croatian sample

Self-reported and measured weight and height of 234 Croatian girls in Grades 5, 8, and 11 were used to explore the validity of these measures for calculating Body Mass Index. For both weight and height, the correlations between self-reported and measured values were over .93. Overweight girls underreported their weight and overreported their height.     

Does stimulant medication decrease the lower extremity response times of children with and without attention-deficit/hyperactivity disorder?

In 2005 Pedersen and Surburg reported that stimulant medications reduced the lower extremity response times of 16 boys with Attention-Deficit/Hyperactivity Disorder. However, as boys without ADHD and girls with and without ADHD were not studied, one cannot conclude that reported effects represent a medication effect unique to children with ADHD. An alternative hypothesis is presented: that stimulant medications produce an excitatory effect in the central nervous system by increased occupancy of postsynaptic dopamine receptors to reduce the lower extremity response times of children in general. Well-designed controlled clinical trials are needed to evaluate this hypothesis.     

The good,the bad (and the ugly): The role of curiosity in subjective well‐being and risky behaviors among adolescents

Previous studies have shown that enhanced trait curiosity has positive influence on well‐being. It remains an open question, however, whether curiosity has any detrimental effects on behavioral outcomes in adolescence. The main aim of this research was to investigate the role of trait curiosity in the prediction of risky behavior engagement and subjective well‐being (SWB) among adolescents. A total of 371 Serbian adolescents (mean age 15.5, SD = 0.57) participated in the 5‐month follow up study. The results showed that the embracing component of curiosity (but not stretching) predicted risky behavior engagement, while the stretching component of curiosity (but not embracing) predicted positive affect. In addition, neither embracing nor stretching was a significant predictor of negative affect and life satisfaction. The results of this study call into question the conceptualization of curiosity as a completely positive emotional‐motivational system, and suggest that curiosity can contribute to negative outcomes in adolescence.     

Towards a Pan‐cultural Personality Structure: Input from 11 Psycholexical Studies

The purpose of the present study is to find the common kernel of different trait taxonomic studies and find out how the individual structures relate to this common kernel. Trait terms from 11 psycholexically based taxonomies were all translated into English. On the basis of the commonalities in English, the 11 matrices were merged into a joint matrix with 7104 subjects and 1993 trait terms. Untranslatable terms produced large areas with missing data. To arrive at the kernel structure of the joint matrix, a simultaneous component analysis was applied. In addition, the kernel structures were compared with the individual taxonomy trait structures, obtained via principal component analysis. The findings provide evidence of a structure consisting of three components to stand out as the core of the taxonomies included in this study; those components were named dynamism, affiliation, and order. Moreover, the relations between these three kernel components and those of a six‐component solution (completing the six‐factor model) are provided. Copyright © 2014 European Association of Personality Psychology     

When Less is More: A Short Version of the Personal Optimism Scale and the Self-Efficacy Optimism Scale

The past few years have seen increased theoretical and applied research on the relations between constructs related to positive expectations. However, instruments capable of distinguishing positive expectancy constructs are still lacking. This study evaluated the psychometric properties of the 18-item Personal Optimism Scale and Self-Efficacy Optimism Scale. Two student samples from the University of Novi Sad in Serbia were recruited for the present research, with a total of 728 participants. The results of the exploratory and confirmatory factor analyses did not support the theoretically expected structure. The results of the confirmatory factor analysis and content validity support shortening the scale to 9 items. The short versions of the scales demonstrated adequate reliability in internal consistency and adequate concurrent and convergent validity by significant correlations with dispositional optimism, general self-efficacy, hope, resilience and subjective well-being. The analyses lead us to conclude that a shorter 4-item Personal Optimism Scale and a 5-item Self-Efficacy Optimism Scale provide a clear, precise measures of two types of positive expectations. The authors argue that the limitations of the original scales emanate from their vague theoretical-substantive validity, and call for future research to replicate these findings.