The Drug Avoidance Self-Efficacy Scale

J Subst Abuse. 1995;7(2):151-63. doi: 10.1016/0899-3289(95)90001-2.


Several scales have been developed to measure self-efficacy for addictive behaviors but there is no such scale applicable to multiple drug users. The Drug Avoidance Self-Efficacy Scale (DASES) was developed to fill this gap. The properties of the scale were evaluated using a sample of 373 young multiple-drug users 16 to 30 years old presenting for treatment at the Addiction Research Foundation. The 16-item scale appeared to be unidimensional. Cronbach's alpha was .9140. Construct validity, evaluated on a subset of the sample, was evident in significant correlations with concurrent measures of drug use severity and differential rates of changes in self-efficacy associated with two types of treatment. The DASES appears to be a reliable and valid scale for the measurement of self-efficacy in multiple-drug users.

MeSH terms

  • Adolescent
  • Adult
  • Ambulatory Care
  • Female
  • Humans
  • Illicit Drugs*
  • Male
  • Patient Admission
  • Personality Inventory / statistics & numerical data*
  • Psychometrics
  • Psychotropic Drugs*
  • Reproducibility of Results
  • Self Concept*
  • Substance-Related Disorders / psychology*
  • Substance-Related Disorders / rehabilitation
  • Treatment Outcome


  • Illicit Drugs
  • Psychotropic Drugs