A drug-use survey was administered in a large metropolitan, middle class high school to test two hypotheses: a. drug users can be divided according to the types of drugs used (tobacco, alcohol, and marijuana vs. opiates, LSD, amphetamines, etc.); and, b. respondents' drug use is significantly related to their peers drug use. Both hypotheses were…

A study was conducted with students in grade 9 in two Ontario schools, with one group receiving six periods of drug education and the control school none at all. The peer-oriented program led to more knowledge about drugs, but no differences in the use of drugs or in attitudes. (Author)

This study applies the family--systems concept of differentiation (the balance of autonomy-granting and connectedness) to another primary system of adolescent development--school. This study assessed the relationships among levels of family and school differentiation to the externalizing and internalizing behaviors, peer group membership, and…