Motivational interviewing and self-determination theory in a web-based computer tailored physical activity intervention: A randomized controlled trial

Objective: This study explores whether a web-based physical activity (PA) intervention grounded in self-determination theory (SDT) and motivational interviewing (MI) is more effective and better appreciated than a traditional web-based PA intervention.

Design: A randomized controlled trial was conducted, comparing (1) I Move; a web-based PA intervention based on SDT and MI, (2) Active Plus; a traditional web-based PA intervention and (3) a waiting list control condition.

Main outcome measures: Weekly minutes of moderate to vigorous PA and weekly days with ≥30 min PA were measured through self-report at baseline and at 3 and 6 months from baseline.

Results: I Move achieved a small, but significant increase in weekly minutes of moderate to vigorous PA, while Active Plus did not have a significant impact on this outcome. Both interventions were effective in increasing weekly days with ≥30 min PA, whereas Active Plus yielded a greater effect on this outcome.

Conclusion: Overall, the web-based PA intervention grounded in SDT and MI did not outperform the traditional web-based PA intervention. Further research should reveal whether this type of intervention is profitable for long-term maintenance of PA levels.     

When Does a Proactive Personality Enhance an Employee’s Whistle-Blowing Intention?: A Cross-Level Investigation of the Employees in Chinese Companies

To identify the boundary conditions for proactive employees making whistle-blowing decisions, we developed a cross-level model comprising employee proactive personality and two types of whistle-blowing intentions that incorporates the influences of organizational- and individual-level attributes. Analyses of data collected from 432 Chinese employees in 32 companies indicated that proactive personality was positively related to internal whistle-blowing intention and even more positively related to external whistle-blowing intention when individuals were working in organizations characterized by an instrumental ethical climate and employees with a high level of moral identity.     

Factorial structure of the perceived stress scale and implications for scoring

IntroductionThe 10-item Perceived Stress Scale (PSS-10) is a brief, widely-used measure of perceived stressful experiences that evaluates the degree to which people perceive their lives as unpredictable, uncontrollable or overloaded.ObjectiveThe present study examined the factor structure of the Greek version of the PSS-10.MethodUsing a representative sample of 320 adults from Cyprus, alternative confirmatory factor analytic models were compared to specifically assess bidimensional versus unidimensional specifications for the scale.ResultsA bifactor model with a general factor which loads on all items and a specific one which loads on positively-worded items that capture the notion of self-efficacy to deal with stressful situations, was found to fit well to the data, while providing evidence of a robust latent factor of general distress. Reliability and construct validity evidence with multiple criterion variables were also examined.ConclusionsAlthough a simple unidimensional specification has not been empirically supported in previous research, bifactor modeling exemplifies the extent of multidimensionality and implies that a single score may be reliably used for practical purposes.     

Perceived threat and depression among patients with cancer: the moderating role of health locus of control

Illness perception was found to be a better predictor of psychological outcome among cancer patients than the objective characteristics of illness. The current study explored the association between the perceived threat of illness (a major aspect of illness perception) and depression among cancer patients. We examined the hypothesis that this association will be higher for persons with low External (others) or internal (self) Health Locus of Control (HLC) than for those with high HLC. The study took an exploratory approach regarding the role that different sources of control (external and internal) may assume. Fifty-seven cancer patients completed self-report measures of Perceived Life Threat (PLT), HLC and Depression. The possible moderating role of HLC on the relationship between PLT and Depression was examined. A significant relationship between perceived threat and depression was found only among participants reporting low levels of internal locus of control. The results support the hypothesis that perception of cancer as life threatening is important factor in determining the level of depression among cancer patients. The results also support the differentiation between internal and external HLC and suggest that internal HLC may be more relevant than external HLC in managing perceived threat. Internal locus of control can be interpreted as having a sense of agency and mastery which is important in managing the cognitive perception of the threat of illness. Further research is needed in order to determine the role of external HLC in managing perceived or actual threats.     

Do hotter temperatures increase the incidence of self-harm hospitalisations?

A relationship between air temperature and the incidence of suicide has been established in a number of previous studies. Interestingly, the relationship between geographical variation in temperature and suicide incidence has generally been found to be negative, while the relationship between temporal variation in temperature and suicide incidence has generally been found to be positive. It is less clear, however, how temperature relates to the incidence of self-harm. This topic is of particular importance given the presence of ongoing global warming. This study investigated the relationship between temperature and the incidence of self-harm resulting in hospitalisation in New Zealand. Self-harm hospitalisations by date and district for 1993–2009 were obtained from the Ministry of Health. Meteorological data was obtained from NIWA. Generalised linear mixed models were used to estimate the effects of three different components of variation in temperature: geographical, seasonal and irregular. Irregular (random) daily variation in temperature had a modest positive relationship with the incidence of acts of self-harm resulting in hospitalisation, with about 0.7% extra incidents for every 1 °C increase in temperature. However, there was no strong evidence for a positive effect of either seasonal or geographical variation in temperature. We conclude that temperature does appear to bear some relation to the incidence of self-harm, with irregular daily variation in temperature having a positive effect. However, inconsistencies in the effects of different components of variation in temperature make it challenging to accurately predict how global warming will influence the incidence of self-harm.     

Climate as situational strength: Safety climate strength as a cross-level moderator of the relationship between conscientiousness and safety behaviour

Extant research on climate strength has frequently invoked situational strength in passing. Given this, it is surprising that the fundamental prediction from the situational strength literature—namely, that strong situations attenuate personality–behaviour relationships—has thus far never been tested empirically using climate strength as an operationalization of situational strength. Consequently, in the present study, we tested this fundamental prediction by positing that organizational safety climate strength moderates the relationships between employee conscientiousness and two forms of employee safety behaviour, such that those relationships are attenuated in strong climates. Using a multilevel design consisting of 964 Korean employees nested within 17 manufacturing organizations, we found support for these cross-level interaction hypotheses. These findings legitimize the frequent invocation of situational strength by climate strength researchers, contribute to the theoretical foundation underlying climate strength, and yield important implications for future research and practice.     

Le rôle médiateur de la réflexivité et du climat entre la distance de pouvoir et l’efficacité d’une équipe de travail

In this study, we investigate the mediating role of reflexivity (West, 1996) and climate to innovation (Anderson & West, 1998) between power distances and effectiveness of work teams of engineers training. Regression analysis (Baron & Kenny, 1986) reveals a total mediation of climate and a partial mediation of reflexivity. These results are discussed from a practical perspective.     

Empathie organisationnelle,soutien organisationnel perçu et efficacité des équipes de travail dans l’industrie nucléaire

This research studies social climate's role in the efficacy of work teams. The referential work frame is based on the concept of organizational empathy (Guédon & Bernaud, 2008), which is specifically operationalized on a tri-dimensional model basis and the perceived organizational support from Eisenberger's model (Rhoades & Eisenberger, 2002). A total of 274 employees, belonging to 3 professional groups, who worked in a nuclear power house participated in this research. Linear regression analysis’ results show a major effect of organizational empathy on the efficacy of work teams, nevertheless predictors’ hierarchy varies upon occupied professional function.     

Validation d’une version française de la Dutch Work Addiction Scale (DUWAS)

The main purpose of this study was to validate a questionnaire in French to assess the two dimensions of workaholism, namely excessive and compulsive work (see Schaufeli, Taris, & van Rhenen, 2008), in samples of French-speaking workers. We first translated the short version of the DUWAS (Schaufeli, Shimazu, & Taris, 2009) and then examined the factorial structure of this French version using confirmatory factor analyses. We also tested the convergent validity of the French version of the DUWAS by examining the relationships between workaholism and perceived stress. Data were collected in two samples of French workers from different sectors (n = 411 and n = 254). Theoretical and practical implications of this work are discussed.