Exploring the impact of personality on performance: How time-on-task moderates the mediation by self-efficacy

Despite the widely acknowledged impact of dispositional traits on performance, little is known about how personality affects performance. We address this gap by investigating the relationships between the Big Five personality traits, self-efficacy, and academic performance in a moderated mediation model using time-on-task as the moderating variable. Results indicate that self-efficacy partially mediates the conscientiousness–performance relationship and that time-on-task moderates the mediating effect of self-efficacy. Time-on-task moderates the indirect effect of conscientiousness on course performance through self-efficacy such that the indirect effect is not significant at low levels of time-on-task, but becomes significant and stronger at higher levels of time-on-task.     

The role of stress mindset in support provision

To better understand the antecedents of support provision within relationships, this study examined the potential role of a novel individual difference; spouses' stress mindset (i.e., beliefs about whether stress‐is‐enhancing or stress‐is‐debilitating). As individuals with a stress‐is‐enhancing mindset often underestimate other's stress, we hypothesized that those with a stress‐is‐enhancing mindset will generally provide less and worse support compared to individuals with a stress‐is‐debilitating mindset. The results revealed few significant associations and the associations that were significant were contrary to predictions. For example, wives with a stress‐is‐enhancing mindset provided more support, and husbands who perceived their partner as having a more stress‐is‐enhancing mindset provided better support. Further research is needed to replicate these results and determine whether stress mindset has interpersonal consequences.     

The Relationship of Reliability and Validity of Personality Tests to Frame‐of‐Reference Instructions and Within‐Person Inconsistency

The efficacy of both frame‐of‐reference (FOR) instructions and a measure of within‐person inconsistency in predicting grade point average was investigated. The IPIP Big Five personality questionnaire was given to 329 students with generic instructions and ‘at school’ FOR instructions. The Wonderlic Personnel Test was also administered. A measure of within‐person inconsistency was created based on the standard deviations of responses to items within the same Big Five dimension. The validity of conscientiousness was greater when FOR instructions were given. The measure of within‐person inconsistency provided incremental validity over that of conscientiousness and cognitive ability. Additionally, within‐person inconsistency moderated the relationship between conscientiousness and performance for the participants without the FOR instructions. Practical implications are discussed.     

Stress Among African American Emerging Adults: The Role of Family and Cultural Factors

The aim of this study was to examine the effects of family and cultural variables on stress among African American emerging adults. Data from this study was collected as part of a larger study that examined cultural, family, and contextual factors and smoking among African American youth in 5th, 8th, and 12th grades. Data were collected from high school seniors at the end of their 12th grade year and 6 months post high school. Multiple regression analyses were conducted to determine whether racial identity, family cohesion, and parental monitoring influence students’ perceived frequency of stress. Higher levels of racial identity were associated with more perceived stress. There were no significant main effects for either parental monitoring or family cohesion on stress. There were significant interactions between racial identity and parental monitoring and between parental monitoring and family cohesion. Study implications are discussed regarding the importance of stress reduction programs for African American emerging adults and for parents of these adults.     

Combating intimate partner violence in Africa: Opportunities and challenges in five African countries

Recent research results emerging from Africa show a worrying situation regarding the levels of intimate partner violence (IPV) in various countries in the continent — levels that are quite high and place great financial burden on individuals and governments. This paper explores the magnitude, nature, and risk factors of IPV in five African countries, namely, Morocco, Nigeria, Namibia, Uganda, and Tanzania. The focus of the paper is to explore issues of IPV in these countries by considering the opportunities in each country that could assist in the prevention of violence, and also to identify inherent challenges that may pose threats to efforts in reducing the high IPV prevalence. As there are only limited studies on IPV in developing countries, new insights provided by this paper would afford relevant stakeholders a better understanding of the issue.     

Comparing the Effects of Three Cognitive Tasks on Indicators of Mental Fatigue

Abstract

This investigation assessed the impact of three cognitively demanding tasks on cognitive performance, subjective, and physiological indicators of mental fatigue. Following familiarization, participants completed four testing sessions, separated by 48?h. During each session, participants watched a 45-min emotionally neutral documentary (control) or completed one of the following computer tasks: Psychomotor Vigilance Task (PVT); AX-Continuous Performance Test (AX-CPT); or Stroop Task. Mental fatigue was assessed before and at regular periods for 60?min following the 45-min treatments. Cognitive performance was assessed using 3-min PVT, and task performance. Subjective assessments were conducted using the Brunel Mood Scale, and visual analog scales (VAS). Physiological indicators of mental fatigue included electroencephalography (EEG), and heart rate variability (HRV). Subjective ratings of mental fatigue increased from pre to 0-min post in all-treatments, but not the documentary (p?p?相似文献