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The Index of Drug Involvement: a partial validation

A C Faul1, W W Hudson

  • 1Rand Afrikaans University, Johannesburg, South Africa. faul@cis.co.za

Social Work
|January 1, 1998
PubMed
Summary
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The Index of Drug Involvement (IDI) is a new, short-form scale for social workers to assess drug abuse and chemical dependency. It offers reliable and valid measures for education, research, and clinical practice.

Area of Science:

  • Social Work
  • Psychology
  • Addiction Medicine

Background:

  • Social workers require versatile assessment tools for diverse client needs.
  • Existing scales may not adequately address drug abuse and chemical dependency in practice.
  • The Index of Drug Involvement (IDI) was developed to fill this gap.

Purpose of the Study:

  • To introduce and describe the Index of Drug Involvement (IDI) scale.
  • To present initial validation research, including reliability and validity.
  • To provide guidance on administration, scoring, interpretation, and clinical application.

Main Methods:

  • The study involved the development and initial validation of the IDI scale.
  • Reliability was assessed through standard error of measurement.

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  • Validity was examined across content, construct, and criterion domains.

    • Main Results:

    • The IDI scale demonstrated acceptable reliability and validity.
    • Initial research supports its utility for assessing drug involvement.
    • A clinical cutting score was developed to aid practitioners.

    Conclusions:

    • The Index of Drug Involvement (IDI) is a promising tool for social work practice, education, and research.
    • It can assist in evaluating the clinical significance of substance abuse.
    • The IDI can guide treatment goal setting for individuals with drug abuse issues.