Altruism predicts mating success in humans

In order for non‐kin altruism to evolve, altruists must receive fitness benefits for their actions that outweigh the costs. Several researchers have suggested that altruism is a costly signal of desirable qualities, such that it could have evolved by sexual selection. In two studies, we show that altruism is broadly linked with mating success. In Study 1, participants who scored higher on a self‐report altruism measure reported they were more desirable to the opposite sex, as well as reported having more sex partners, more casual sex partners, and having sex more often within relationships. Sex moderated some of these relationships, such that altruism mattered more for men's number of lifetime and casual sex partners. In Study 2, participants who were willing to donate potential monetary winnings (in a modified dictator dilemma) reported having more lifetime sex partners, more casual sex partners, and more sex partners over the past year. Men who were willing to donate also reported having more lifetime dating partners. Furthermore, these patterns persisted, even when controlling for narcissism, Big Five personality traits, and socially desirable responding. These results suggest that altruists have higher mating success than non‐altruists and support the hypothesis that altruism is a sexually selected costly signal of difficult‐to‐observe qualities.     

The Perceptions of Persons Living with Human Immunodeficiency Virus/Acquired Immune Deficiency Syndrome About Their Experiences in Regaining Productive Occupations: A Delphi Study

Research supports the importance of occupational role engagement for people living with human immunodeficiency virus and acquired immunodeficiency syndrome. This qualitative Delphi study obtained the perspectives of participants in a community-based program for persons living with human immunodeficiency virus/acquired immunodeficiency syndrome about their resumption of productive occupations. Data analysis revealed four themes of self-worth, finances, health, and social systems. Within each theme, motivators, obstacles, and supports were identified. These findings can be used to guide occupational therapy practitioners working with persons living with human immunodeficiency virus/acquired immunodeficiency syndrome to facilitate supports, surmount barriers, and empower persons living with human immunodeficiency virus/acquired immunodeficiency syndrome to resume and retain desired and meaningful occupational roles.     

Depression or anxiety: which is best able to predict patterns of lateralisation for the processing of emotional faces?

Previous research has shown that both anxiety and depression are associated with strength of lateralisation for the processing of emotive faces, although these clinical measures have always been considered in separate studies. In the present study, we measure depression and anxiety, within the same non-clinical sample, and consider whether these variables can predict strength of lateralisation, measured using the chimeric faces test. There are two key findings from this study. First, for females only, anxiety is negatively associated with right hemispheric superiority for processing of negative emotional expressions. Second, there was only one finding for depression, showing a relationship with strength of lateralisation for the processing of fearful faces that differed according to sex.     

The influence of social category cues on the happy categorisation advantage depends on expression valence

Facial race and sex cues can influence the magnitude of the happy categorisation advantage. It has been proposed that implicit race or sex based evaluations drive this influence. Within this account a uniform influence of social category cues on the happy categorisation advantage should be observed for all negative expressions. Support has been shown with angry and sad expressions but evidence to the contrary has been found for fearful expressions. To determine the generality of the evaluative congruence account, participants categorised happiness with either sadness, fear, or surprise displayed on White male as well as White female, Black male, or Black female faces across three experiments. Faster categorisation of happy than negative expressions was observed for female faces when presented among White male faces, and for White male faces when presented among Black male faces. These results support the evaluative congruence account when both positive and negative expressions are presented.     

Associations between sexual sensation seeking and AIDS-related knowledge,attitudes and behaviors among young men who have sex with men in China

Young men who have sex with men (YMSM) have become high risk groups for HIV infection in China. Recent researches suggest that sexual sensation seeking is significantly associated with AIDS-related knowledge, attitudes and behaviors, but the relationship is not clear in the field of YMSM in China. The present study aimed to evaluate the relationship between sexual sensation seeking and AIDS-related knowledge, attitudes, and behaviors among YMSM in China. A cross-sectional study was conducted in Wuhan, China from May to November 2013. 403 YMSM were recruited and 373 of them completed the questionnaire. Regression analyses indicated that YMSM with high sexual sensation seeking score are more likely to have low awareness of knowledge and negative attitude about condom use, as well as more risky sexual behaviors.     

Exploring the relationship between compressed work hours satisfaction and absenteeism in front-line service work

There has been an upsurge of interest in compressed workweek schedules because of the opportunities they provide for enhanced organizational efficiency and more balanced work and life roles for employees. This study tested a moderated mediation model of the effects of compressed work hours satisfaction on absenteeism with the purpose of exploring both the mediation effects of emotional exhaustion and physical health and the moderating effects of sex on this relationship. It utilized data drawn from a sample of 236 contact-centre service workers linked to absenteeism data collected for a period of 12 months following the survey. Results indicated that compressed work hours satisfaction was associated with lower absenteeism and that this relationship was mediated sequentially through emotional exhaustion and physical health. Although the indirect effect of compressed work hours satisfaction on absenteeism through emotional exhaustion and physical health was not significantly different between women and men, the relationship between compressed work hours satisfaction and physical health was positive for women but not for men. The implications of these findings are discussed.     

Does it matter in the long run? Longitudinal effects and interactions in the differentiated job demands–resources model

The distinction of challenge and hindrance stressors in the job demands–resources (JD–R) model has increasingly attracted the interest of occupational health researchers. Drawing on the differentiated JD–R framework, we tested causal, reciprocal, and interaction effects of challenge demands, hindrance demands, and job resources on emotional exhaustion, depersonalization, and work engagement. Cross-lagged structural equation modelling was used to analyse cohort data of N = 400 German physicians across three waves comprising 9 years of observation. Overall, support for our hypotheses was limited. Higher job resources were associated with reduced depersonalization in the first time lag of 2 years. No cross-lagged effects were found for the second time lag of 7 years. Out of 12 hypothesized interaction effects, only 1 significant interaction was observed, where job resources attenuated the positive association between challenge demands and depersonalization between the first and second waves. Results provide only modest support for differential effects of challenge and hindrance demands in the JD–R model. Potential shortcomings and implications for future research are discussed.     

Employable,committed, and thus well-performing: a matter of interdependent forward-looking social exchange

This study probes the relationship between perceived external employability (i.e., the individual’s perception of available jobs on the external labour market) and affective commitment and performance within the framework of social exchange. An innovative feature is that we advance perceived external employability as a commodity of interdependent forward-looking exchange: employees who perceive themselves as externally employable anticipate successful exchange, which drives further responses, both relational (i.e., affective organizational commitment) and behavioural (i.e., performance). Strong features of this study are that we include (a) both the organization and the workgroup as foci of affective commitment, and (b) task, helping, and counterproductive behaviour as indicators of performance. Results from cross-lagged, structural equation modelling (SEM) analyses on two-wave survey data (N = 458 Belgian employees) largely align with our idea: perceived external employability has a positive cross-lagged effect on affective organizational and workgroup commitment. The two foci of commitment in turn have a cross-lagged effect on performance, positive in the case of helping behaviour and negative in the case of counterproductive behaviour. No significant cross-lagged effects were found in relation to task behaviour. We discuss these results in the light of Social Exchange Theory and potential routes for future research.