Developed Adolescent Drug Involvement Scale (ADIS) to measure level of drug involvement, considered as continuum ranging from no use to severe dependency, in adolescents. Administered ADIS to 453 adolescents referred for treatment. Results indicated acceptable internal consistency and provide preliminary evidence of validity. Scores correlated…

Describes development of Adolescent Drug Abuse Diagnosis (ADAD), a 150-item instrument with a structured interview format, which produces a comprehensive evaluation of the life problem areas pertinent to the needs of adolescent drug abuse clients. A series of validity and reliability tests are described, along with characteristics of the…

Identifying, acquiring, and developing valid and reliable instruments are major problems facing researchers who study psychosocial drug use and abuse. Much time is often devoted to creating a measuring device when an adequate one already exists, resulting in duplication of effort, considerable waste of resources, and loss of uniform comparability…