Within contemporary developmental science, models derived from relational developmental systems (RDS) metatheory emphasize that the basic process of human development involves mutually-influential relations, termed developmental regulations, between the developing individual and his or her complex and changing physical, social, and cultural…

According to a 2009 AP-MTV survey of 1,247 people ages 14-24, 50% of those surveyed have experienced cyberbullying (Gatti 1). Victims were twice as likely to need help from a mental health professional and were three times more likely to drop out of school than those surveyed who did not report being cyberbullied (5). Given this alarming social…

There is a paucity of test-retest reliability data for adolescent self-reports of a wide range of risk behaviours. Grade 8 and 11 Students (N=358) completed a questionnaire on two occasions between 10 and 14 days apart. It included items about use of various substances, violent behaviour, suicidality, and sexuality. Cohen's kappa was almost…