Gender differences and social support: Mediators or moderators between peer victimization and depressive feelings?

Using self‐report questionnaires, a survey among 606 Dutch primary school children aged 10 to 12 years examined relationships among social support, gender, victimization, and depressive feelings. Hierarchical regression analyses confirmed that victims and bully/victims would report more depressive feelings than uninvolved children. There was no evidence that social support moderated the relationship between victimization and depressive feelings. However, social support appeared to influence the depressive feelings of victimized children, that is, pupils who were victimized received very little support and hence suffered depression. This general mediation effect could be observed in boys. In girls, the mediating effects of social support were more diffuse. For girls, the risk factor for the development of depressive feelings did not so much pertain to the type of bullying as to the subsequent lack of social support they experienced. © 2011 Wiley Periodicals, Inc.     

Some empirical notes on the epo epidemic in professional cycling

The 1990-2010 period in professional cycling is labeled by some as the epo epidemic. Surprisingly, performance enhancement by epo and blood doping is not that clear-cut for endurance athletes, leading to the question whether doping indeed strongly influenced cyclists' performances from the 1990s onwards. We examined the records (1947-2008) of the Tour de France, Giro d'Italia, and Vuelta a Espa?a (N = 181) and assessed the time it took riders to win the race. The findings revealed normally distributed performances and linear and quartic relationships in victors' performances over time that correspond with Brewer's (2002) sociohistorical analysis of professional cycling suggesting that effects of the epo epidemic on professional cyclists'achievements may be overestimated.     

Some Empirical Notes on the Epo Epidemic in Professional Cycling

The 1990–2010 period in professional cycling is labeled by some as the epo epidemic. Surprisingly, performance enhancement by epo and blood doping is not that clear-cut for endurance athletes, leading to the question whether doping indeed strongly influenced cyclists' performances from the 1990s onwards. We examined the records (1947–2008) of the Tour de France, Giro d'Italia, and Vuelta a España (N = 181) and assessed the time it took riders to win the race. The findings revealed normally distributed performances and linear and quartic relationships in victors' performances over time that correspond with Brewer's (2002) sociohistorical analysis of professional cycling, suggesting that effects of the epo epidemic on professional cyclists' achievements may be overestimated.