Compared self-administered diaries and telephone interviews as ways of collecting data from 100 adults and adolescents in a survey of drinking, drug use, and sexual activity. Outlines advantages of each method and the higher personnel costs of telephone interviews. (SLD)

Studied how multiple methods of follow-up can enhance the rate of response to mail questionnaires. The initial sample of 1,505 adults was contacted by mail for a health behavior survey. Follow-ups by mail and telephone resulted in an 89% response rate and demonstrated the efficacy of the follow-up methods. (SLD)

A study with follow-up interviews of services for homeless and mentally ill persons (original sample of 163) had a very high success rate of over 70% in tracking this difficult to locate population. Techniques for locating clients are presented, as identified by a focus group of five researchers. (SLD)

The problem of the appropriate comparison group for bereavement studies is discussed. The use of the retrospective pretest design is illustrated through a longitudinal study of bereavement outcome following pregnancy loss, involving 138 bereaved women and a comparison group of 215 currently pregnant women. (SLD)

Whether methadone maintenance treatment demonstrates cumulative (rehabilitative) or stabilizing effects on behavior of narcotics addicts over multiple treatment episodes was studied involving 993 addicts in a quasi-experimental design. Observed behavioral changes and longitudinal self-reports indicate stabilizing, but not cumulative, effects. (SLD)

Focus group findings were compared with survey findings for three studies in which both methods were used. Studies conducted on voluntary sterilization in Guatemala, Honduras, and Zaire with over 2,000 subjects confirm that focus groups yield information similar to that obtained from surveys and are useful in program planning. (SLD)