Estimation of careless error and lucky guess probabilities for dichotomous test items: A psychometric application of a biometric latent class model with random effects

Medical research has extensively dealt with the estimation of the accuracy (sensitivity and specificity) of a diagnostic test for screening individuals. In this paper we apply the biometric latent class model with random effects by Qu, Tan, and Kutner [(1996). Random effects models in latent class analysis for evaluating accuracy of diagnostic tests. Biometrics, 52, 797-810] to estimate the response error (careless error and lucky guess) probabilities for dichotomous test items in the psychometric theory of knowledge spaces. The approach is illustrated with simulated data. In particular, we extend this approach to give a generalization of the basic local independence model in knowledge space theory. This allows for local dependence among the indicators given the knowledge state of an examinee and/or for the incorporation of covariates.     

Examining the impact of social commerce dimensions on customers' value cocreation: The mediating effect of social trust

One of the main aspects of the Web 2.0 revolution has been social commerce that has resulted in many people across the world increasingly engaging with commercial activities over social media platforms. However, the academic and research interest in social commerce is still low, and more studies are required to accelerate awareness of the most important issues relating to social commerce, in particular, social trust and value cocreation. Thus, the present study aims to propose a conceptual model that is intended to enable greater understanding of the causal interactions between social commerce constructs, social trust, and customer value cocreation. We collected data using a sample of 300 followers and fans of online Facebook communities, and we analysed them by using a structural equation model. The results show that social commerce constructs positively impact on social trust. Furthermore, we found that social trust positively impacts on the three dimensions of customer value cocreation. We found that social trust mediates the relationship between the social commerce and customer value cocreation dimensions. The paper presents a considerable theoretical contribution for being the first study that links social commerce constructs with social trust. The linkage between social commerce constructs, social trust, and customer value cocreation dimensions will also be beneficial for social media marketing strategists and managers.     

Creative Approaches to Address Online Dating in Counseling

Within the last decade, online dating has become an increasingly popular method for meeting potential partners. Online dating comes with a unique set of opportunities and challenges that may affect the overall mental health of our clients. Hence, it is essential for counselors to be prepared and able to discuss online dating in counseling. The authors of this article introduce three potential creative interventions to assist in addressing online dating within counseling.     

On the links between positive religious coping,satisfaction with life and depressive symptoms among a multinational sample of Muslims

This study tested the levels and consequences of positive religious coping among a multinational sample of Muslims. The sample consisted of 706 university students recruited in three Muslim countries: Israel/Palestine, Turkey and Malaysia. Participants' average age was 22.61, and 65% of them were females. This investigation applied a cross‐sectional comparative methodology. Measures used: demographics, positive religious coping, satisfaction with life and depressive symptoms. The findings indicated that (a) participants reported high levels of positive religious coping usage, and Malaysians scored significantly higher in this regard than both Palestinians and Turks; (b) positive religious coping correlated positively with satisfaction with life but was not linked to depressive symptoms and (c) the magnitude of correlation between positive and satisfaction with life was significantly higher among Malaysians than among both Palestinians and Turks. The findings suggest that to understand the implications of positive religious coping for the health and well‐being of Muslims, a detailed and nuanced analysis is needed.     

Correlates of adolescent pregnancy in La Paz,Bolivia: findings from a quantitative-qualitative study

Recent data indicate that nearly one in three Bolivian adolescent females becomes pregnant prior to reaching age twenty. This article presents the results of a study undertaken to address the question of why some female adolescents in La Paz, Bolivia, become pregnant while others in similar circumstances avoid early pregnancy. The study utilized mixed qualitative-quantitative methods based on a case-control design. Among the potential explanatory factors considered were family structure, parental relationships, partner relationships, knowledge of pregnancy risks, self-esteem, and locus of control. Significant differences between girls experiencing a pregnancy and those who had not were observed on two of the six factors considered-relationships with parents and self-esteem. Girls who had experienced a pregnancy were less likely to have reported affectionate and supportive parents, more likely to have reported fighting in their home, and exhibited lower levels of self-esteem than those who had never been pregnant. Focus-group discussions suggested that adolescent females in La Paz lack trustworthy support networks that would empower them to seek information regarding sex and contraception and to act upon such information.     

Self-esteem as a predictor of attitudes toward wife abuse among Muslim women and men in Canada

This study was designed (a) to assess attitudes toward wife abuse in a sample of Muslim women and men in Canada and (b) to assess whether those attitudes were influenced by self-esteem. Results suggested that, as in general North American samples, the Muslim women and men did not differ from each other on levels of self-esteem. Also consistent with general North American samples, the Muslim women's and men's attitudes toward wife abuse were related to their self-esteem, with higher self-esteem scores predicting stronger attitudes against wife abuse, independent of gender. However, the results also revealed that the Muslim men had significantly more lenient attitudes toward wife abuse compared with the Muslim women and with North American norms.     

When do low‐power customers complain? The joint effects of chronic sense of personal power and complaint success on complaining intentions

In the customer complaint literature, researchers have found that the lack of an incidental sense of power is one of the reasons why customers do not complain. However, two issues are left unanswered: does a chronic sense of power influence consumer complaining behavior, and how individuals who feel chronically powerless can be encouraged to complain when dissatisfied. The present study is intended to address this topic. Drawing on the approach–inhibition theory of power, we argue that the probability of complaint success increases the complaint behavior of customers with a low chronic sense of power, thereby mitigating the differences in the complaint behavior of consumers with low and high power. The three studies indicated that a low chronic power was negatively associated with complaining intentions and that this association was mitigated by the perceived success of complaining.     

Examining the Effects of Servant Leadership on Life Satisfaction

This paper explored the effects of servant leadership on employees’ life satisfaction. In addition, it examined the mediating role of work engagement and organizational based self-esteem (OBSE) in this relationship. Data for this cross sectional survey study were collected from 160 Pakistani employees who were working on a full-time basis in a large tractor manufacturing company. The SPSS macro developed by Preacher and Hayes (2008) was used to test the research hypotheses. Results showed that servant leadership was positively related to both work engagement and OBSE, which, in turn, were both positively related to life satisfaction. Furthermore, it was found that work engagement and OBSE fully mediated the effects of servant leadership on life satisfaction. Limitations of the results and implications of these findings for theory and practice are discussed.     

Wearable Activity Technology And Action-Planning (WATAAP) to promote physical activity in cancer survivors: Randomised controlled trial protocol

Background/Objective: Colorectal and gynecologic cancer survivors are at cardiovascular risk due to comorbidities and sedentary behaviour, warranting a feasible intervention to increase physical activity. The Health Action Process Approach (HAPA) is a promising theoretical framework for health behaviour change, and wearable physical activity trackers offer a novel means of self-monitoring physical activity for cancer survivors. Method: Sixty-eight survivors of colorectal and gynecologic cancer will be randomised into 12-week intervention and control groups. Intervention group participants will receive: a Fitbit Alta? to monitor physical activity, HAPA-based group sessions, booklet, and support phone-call. Participants in the control group will only receive the HAPA-based booklet. Physical activity (using accelerometers), blood pressure, BMI, and HAPA constructs will be assessed at baseline, 12-weeks (post-intervention) and 24-weeks (follow-up). Data analysis will use the Group x Time interaction from a General Linear Mixed Model analysis. Conclusions: Physical activity interventions that are acceptable and have robust theoretical underpinnings show promise for improving the health of cancer survivors.