Defense Date

6-25-2021

Graduation Date

Summer 8-7-2021

Availability

Immediate Access

Submission Type

dissertation

Degree Name

PhD

Department

Counselor Education and Supervision (ExCES)

School

School of Education

Committee Chair

David Delmonico

Committee Member

Bradley T. Erford

Committee Member

William J. Casile

Keywords

Drug Abuse Screening Test, DAST-20, psychometric synthesis

Abstract

Numerous research articles have reported differing data on the psychometric properties of the 20-item version of the Drug Abuse Screening Test (DAST-20, Skinner, 1982a). Aggregating this diverse information can lead to a better understanding of how to use and interpret the instrument with clients and research participants. In this psychometric synthesis, evidence of reliability and validity of the DAST-20 scores was aggregated in order to provide a more comprehensive summary of the psychometric properties of the instrument to better inform counseling professionals when using the DAST-20. Overall, the available evidence indicates that the DAST-20 produces reliable and valid scores when screening for drug abuse consequences. However, data was limited and future research is needed to further assess the psychometric properties of the instrument, including internal consistency, test-retest reliability, convergent validity, diagnostic validity, and structural validity. Implications for professional counselors and counselor research are discussed.

Language

English

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