Sharing tips with strangers: exploiting gift culture in computer gaming.

The aim of this study was to look at motivations behind altruistic behavior in virtual communities by studying the sharing of game tips by experienced gamers. We examine several possible motivations (pure altruism, generalized reciprocity, and reputation) and qualitatively analyze tip types in terms of usefulness, visibility, and skill level. We found that in games that do not support a "performance stage" for skill demonstration, players often share game tips as a strategy to attract attention. To a certain degree, reciprocity can be used to explain small favor exchanges, but earning social reputation is often a much stronger motivating factor.     

Assessing the automaticity of intramodal and crossmodal spatial attentional orienting

Clark and Chalmers (1998) have argued that mental states can be extended outside an organism's skin. In response to some worries about the availability, reliability and portability of such extended resources, Clark (2005) offers a set of rough criteria that non-biological objects must fulfil to legitimately ground mental states. One such criterion is that the information retrieved from these non-biological sources be (more or less) automatically endorsed. But Sterelny (2003, 2005) has persuasively argued that the extended sphere is epistemologically opaque: a domain of contested truth and deliberate deception. As such, retrieving information from this domain requires the deployment of social guards for the information to remain reliable. But deploying such guards would seem to endanger endorsability by increasing cognitive load. Here I demonstrate that deploying social guards does not increase cognitive load if the guards are implemented in a highly distributed connectionist economy or off-loaded to the external environment.     

Information search in the testing of quantified hypotheses: how "all," "most," "some," "few," and "none" hypotheses are tested

A series of experiments examined how the search for information in the testing of hypotheses is affected by quantifiers that specify the frequency of the test relation. The experiments showed that a positive search is used more in the testing of propositions in which some instances are predicted to have the test relation than in the testing of propositions in which most or few instances are predicted to have the test relation. In addition, the studies demonstrated that a negative or disconfirmatory search is more likely to characterize tests of absolute hypotheses than tests of hypotheses of the majority or minority form. Finally, the findings indicated that a negative search also is more common in tests of hypotheses predicting the absence rather than the presence of a phenomenon. Thus, as expected, participants generally engaged in a diagnostic search rather than the confirmatory search for information that has been so ubiquitous in previous research.     

An alternative perspective on von Winterfeldt et al.'s (1997) test of consequence monotonicity

D. von Winterfeldt, N.-K. Chung, R. D. Luce, and Y. Cho (1997) provided several tests for consequence monotonicity of choice or judgment, using certainty equivalents of gambles. The authors reaxiomatized consequence monotonicity in a probabilistic framework and reanalyzed von Winterfeldt et al.'s main experiment via a bootstrap method. Their application offers new insights into consequence monotonicity as well as into von Winterfeldt et al.'s 3 experimental paradigms: judged certainty equivalents (JCE), QUICKINDIFF, and parameter estimation by sequential testing (PEST). For QUICKINDIFF, the authors found no indication of violations of "random consequence monotonicity." This sharply contrasts the findings of von Winterfeldt et al., who concluded that axiom violations were the most pronounced under that procedure. The authors found potential evidence for violations in JCE and certainty equivalents derived from PEST.     

Conscientiousness and (un)healthy eating: The role of impulsive eating and age in the consumption of daily main meals

The present study aims to explore the relationship between conscientiousness and the consumption of healthy versus unhealthy main meals. Impulsive eating was tested as a mediator in this relationship, as well as direct effects of age on those constructs. A nationwide representative sample of 1,006 Norwegian adults (18–70 years) within a prospective design was used to test a theoretical model. The structural equation model (SEM), in combination with bootstrapping procedures in AMOS, was the principal analytical method. Conscientiousness was negatively associated with unhealthy and impulsive eating. Impulsive eating was a partial mediator between conscientiousness and unhealthy eating and a full mediator between conscientiousness and healthy eating. Age was positively correlated with conscientiousness and this relationship had an inverted U‐shape form. Finally, age was negatively associated with unhealthy and impulsive eating, and positively associated with healthy eating. This study confirmed the relevance of conscientiousness for healthy, unhealthy, and impulsive eating.     

Salesperson brand attachment: a job demands-resources theory perspective

Sales researchers have largely ignored the idea that salespeople form attachments to the brands that they sell, and that these attachments hold important consequences for sales outcomes. Drawing on job demands-resources theory, the authors suggest that salesperson brand attachment (SBA) serves as a unique psychological resource for salespeople. Using data from 154 salespeople from the beverage industry, they provide evidence that SBA increases selling effort toward the brand, and ultimately job satisfaction. In addition, they show that salesperson's brand attachment acts as a buffer against perceived job demands, including job codification and hierarchy of authority. In general, results support the job demands-resources framework and confirm that SBA is a resource that may be leveraged to offset job demands, under certain situations.     

The influence of different dialysis modalities on the quality of life of patients with end-stage renal disease: A systematic literature review

Objectives: This study aims to generate evidence regarding the relationships of different dialysis modalities with HR-QOL.

Design: A systematic review was conducted to investigate the HR-QOL of patients treated with different dialysis modalities.

Methods: A literature search was conducted for English language articles in the CINAHL, Medline and PubMed databases published from January 1990 through May 2016. Specifically, we sought articles that would compare the HR-QOL of hemodialysis (HD) and peritoneal dialysis (PD) patients in terms of physiological, psychological and social functioning, as well as disease symptoms. Thirty-four articles met the study inclusion criteria and were included into the analysis.

Results: The research results indicated no significant differences in HR-QOL between HD and PD treatment. However, a higher percentage of patients who received PD had a better HR-QOL in terms of physiological, psychological, social and disease symptoms.

Conclusions: Despite the fact that the results of this study showed no difference in HR-QOL between HD and PD treatment, its review of relevant references can serve as a reference for health professionals. However, patients’ conditions must still be taken into account when making suggestions about which dialysis modality a patient should use.     

The Effect of the Running‐Man Emergency Exit Sign and Its Installed Location on Human Directional Choice

Understanding the meaning of an emergency exit sign is essential for escaping from a building during a disaster. According to International Organization for Standardization 7010:2011, there are leftward and rightward running‐man exit signs indicating the location of an exit door. However, there is neither an application rule regarding which direction the sign should point nor a rule for where it should be attached in the horizontal dimension. We examined the effect of the heading direction of the running man and its horizontal locations on the selection of exit directions. A modified spatial Stroop task as an unforced‐choice task was designed by combining the running man's heading direction and its horizontal location. The results showed both facilitation and inhibition effects, conflict adaptation, and post‐error slowing reflecting top‐down control. These findings suggest that the heading direction of the running‐man exit sign includes evident directionality. This should be considered in designing and establishing standardized emergency exit signs. Copyright © 2016 John Wiley & Sons, Ltd.     

The performance implication of obsessive work passion: unpacking the moderating and mediating mechanisms from a conservation of resources perspective

Work passion is an important determinant of work performance. While harmonious work passion (HWP) shows its consistent predictive value, obsessive work passion (OWP) appears to have a mixed relationship with work performance. To address this puzzle, we integrate research on OWP and emotional exhaustion with conservation of resources (COR) theory. Specifically, we argue that OWP determines emotional exhaustion, whose relationship with work performance is attenuated by leader-member exchange (LMX). By conducting a field study with a sample of 262 US employees, we found supportive evidence, even when controlling for psychological detachment from work. The findings somewhat reconcile the inconsistent results about OWP and work performance in the literature, shed light on research on work passion, LMX, and emotional exhaustion, and provide implications for managerial practice.