Two programs on drug, alcohol, and sex education in two Glasgow (Scotland) high schools were evaluated to assess their effectiveness. One was a drugs and alcohol education program at City High School and the other a sexual health program at Clydeside High School. Both schools drew from a local population that included a significant number of poorer, less educated families. The drug and alcohol program included two formats, a standard 10-week course delivered by a Personal and Science Development teacher and an alternative program designed and delivered by project workers from the local Health Board and addiction project. Both were designed to help young people make informed decisions about any potential use of drugs. The evaluation compared participants' views on the two different courses. The sexual health program had a particular focus on pregnancies among local young women who were thought to be leaving school and becoming pregnant soon after. The evaluation compared the views of pupils, researchers, and health workers before and after the program. Among the many findings were the following: students found the alternative drug program very relevant; those in the sexual health program felt the course had provided information they needed and enhanced their ability to make decisions. Three appendixes contain information on research methodology, program content, and research team members. (JB)