Background The concept of demand characteristics, which involves research participants
being aware of what the researcher is investigating, is well known and widely used within …

We systematically searched 9 biomedical and social science databases (1980–2012) for
primary and secondary interventions that prevented or reduced 2 or more adolescent health …

Using Add Health data, the authors provide evidence that some adolescents gave
inaccurate and/or invalid responses on a self-administered questionnaire. Further analyses …

Adolescence is often described as a time of experimentation with risky or problem behaviors
(Arnett, 2000), and substance use is one such behavior that is initiated during this age …

Adolescence is a period of rapid biological, psychological, and social development in the
human life cycle. Drug and alcohol misuse during this critical period poses substantial …

Aims Clinical trials test the safety and efficacy of behavioral and pharmacological
interventions in drug‐dependent individuals. However, there is no consensus about the …

The assessment of marijuana use quantity poses unique challenges. These challenges
have limited research efforts on quantity assessments. However, quantity estimates are …

Background Health risk behaviours often co-occur in adolescence. This may be partially
explained by a set of common risk and protective factors. The current study examines the …

Adolescents involved with the juvenile justice system have a high incidence of risky sexual
behaviors resulting in unintended pregnancy and sexually transmitted infections. Substance …

BACKGROUND: Exposure to adverse family environments in childhood can influence the
risk trajectory for developing substance use disorders in adolescence. Evidence for this is …