Typology of aggressive and transgressive drivers.

The present study investigates the pattern in which transgressive and aggressive driving motives and aggressive driving were ordered in different clusters of drivers. To establish the difference between profiles, anger disorders, state-trait anger, and motives for transgression and respect for traffic rules were studied and compared between clusters. A total of 383 participants (laypersons), of all age and gender, filled out self-report measures evaluating aggressive driving, state-trait anger, anger disorders, aggressive driving motives, and motives for transgression and respect for traffic rules.

Parental contributions and separation anxiety on adolescents' cannabis use: a preliminary study based on French high school students.

Background: Separation anxiety (SA) among adolescents remains a very rare diagnosis. According to some authors, behavioral disorders may arise from SA disorders. This study evaluated the relationship between cannabis use and family functioning among adolescent cannabis users.

Driving anger, emotional and instrumental aggressiveness, and impulsiveness in the prediction of aggressive and transgressive driving.

The present study investigates the potential contribution of three predictors of aggressive and transgressive behaviors on the road: driving anger, impulsiveness and aggressiveness. A total of 455 participants (laypersons), of all age and gender, filled self-reported measures evaluating driving anger, impulsiveness, two forms of aggressiveness (instrumental and emotional forms), driving behaviors and aggressive and transgressive behaviors. Main results indicate: (1) a significant gender effect for almost all variables; (2) gender was involved in the prediction of Lapses and Errors; (3) driving anger, impulsiveness and aggressiveness were involved in a complementary manner in the prediction of aggressive and transgressive driving; (4) Aggressiveness and Impeded Progress were the best predictors of violations and aggressive violations.