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.     

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.     

Proactive Coping as a Mediator Between Resources and Outcomes: A Structural Equations Modeling Analysis

Proactive coping is a recent construct in the field of positive psychology. It refers to the efforts aimed at building general forces to facilitate the path toward challenging goals and personal growth. The current study adopted a theoretical model of proactive coping as a mediator of resources with positive and negative outcomes. Our aim was to examine two separate models with satisfaction with life and depression as the proposed outcomes of proactive coping. The proposed models presumed direct relationships between self-efficacy, optimism and social support with life satisfaction or depression, as well as indirect paths through proactive coping. We administered a set of questionnaires that consisted of demographic data, the Proactive Coping Scale, the General Self-efficacy Scale, the Life Orientation Test-Revised, the Perceived Social Support Scale, the Beck Depression Inventory, and the Satisfaction with Life Scale. Data were obtained from a sample of high school graduates (N?=?485, age 17 to 19, 174 males and 311 females). Our analyses confirmed presumed direct and indirect relationships between resources and outcomes. The results showed that the data fit well in the model with life satisfaction as an outcome, while the data did not fit well in the model with depression as an outcome. A subsequent model was formed in which satisfaction with life was used as a full mediator between proactive coping and depression; this model provided a good fit to the data. Theoretical implications, as well as suggestions for future research, are discussed.     

People with physical disability in Serbia: Relationship between internalized stigma,experienced and anticipated discrimination,and empowerment

The aim of present study was to explore relationships between experienced and anticipated discrimination, internalized stigma, and empowerment among people with physical disabilities in Serbia. The convenience sample consisted of persons with different types of physical disabilities. The following scales were administrated: The Discrimination and Stigma Scale, the Internalized Stigma of Mental Illness Scale, and the Boston University Empowerment Scale. An analysis showed that internalized stigma was correlated with experienced and anticipated discrimination and empowerment, while no correlation was found between empowerment and discrimination. People with physical disabilities who experienced and anticipated discrimination are at higher risk of reporting internalized stigma.     

Is Objective Consequentialism Compatible with the Principle that “Ought” Implies “Can”?

Some philosophers hold that objective consequentialism is false because it is incompatible with the principle that “ought” implies “can”. Roughly speaking, objective consequentialism is the doctrine that you always ought to do what will in fact have the best consequences. According to the principle that “ought” implies “can”, you have a moral obligation to do something only if you can do that thing. Frances Howard-Snyder has used an innovative thought experiment to argue that sometimes you cannot do what will in fact have the best consequences because you do not know what will in fact have the best consequences. Erik Carlson has raised two objections against Howard-Snyder’s argument. This paper examines Howard-Snyder’s argument as well as Carlson’s objections, arguing that Carlson’s objections do not go through but Howard-Snyder’s argument fails nonetheless. Moreover, this paper attempts to show that objective consequentialism and other objectivist moral theories are compatible with the principle that “ought” implies “can”. Finally, this paper analyses a special kind of inability: ignorance-induced inability.     

It’s up to you: The Influence of Sports Participation,Academic Performances and Demo-Behavioral Characteristics on University students’ Life Satisfaction

This paper investigates university students’ life satisfaction by measuring six life satisfaction components (family life satisfaction, social life satisfaction, satisfaction with the university experience, satisfaction with oneself, satisfaction with the place of residence, satisfaction with the overall life) among different students’ groups. Life satisfaction is measured using Brief Multi-Dimensional Students’ Life Satisfaction Scale (BMSLSS). A cross-sectional approach was taken to examine differences among identified students’ groups according to: academic performance (by GPA and status of funding), demographic and behavioral characteristics (by gender, body mass index, smoking and alcohol consumption) and features related to physical activity (by weekly time spent in physical activity in hours and group of sport engaged in). Research is conducted among 507 students at the Faculty of Organizational Sciences, University of Belgrade, Serbia. Man Whitney and Kruskal Wallis test were performed for pairwise comparison using Bonferroni correction. The results show statistically significant differences in the following components: satisfaction with family life (within gender group), satisfaction with social life (within sex and smoking groups), satisfaction with the university experience (within sex, smoking, alcohol consumption, GPA and scholarship/funding status groups), satisfaction with oneself (within GPA, financial status, alcohol consumption and type of sport groups), satisfaction with the place of residence (within GPA, scholarship/funding status, time spent in physical activities and body mass index) and satisfaction with the overall life (within gender and alcohol consumption groups). This paper has both theoretical and practical influence on contemporary life satisfaction field of knowledge, particularly in university students’ population.