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Related Experiment Videos

Measuring interstate variations in drug problems.

W E McAuliffe1, R LaBrie, N Lomuto

  • 1Department of Psychiatry, Harvard Medical School, National Technical Center for Substance Abuse Needs Assessment, North Charles Research and Planning Group, Cambridge, MA 02139, USA.

Drug and Alcohol Dependence
|March 18, 1999
PubMed
Summary
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The Drug Problem Index (DPI) quantifies state-level drug abuse severity using mortality, arrest, and treatment data. This composite index demonstrates construct validity and correlates with drug need, aiding in understanding regional drug abuse challenges.

Area of Science:

  • Public Health
  • Epidemiology
  • Sociology

Background:

  • Drug abuse presents a significant public health challenge with varying severity across states.
  • Accurate measurement of drug abuse problems is crucial for resource allocation and policy development.

Purpose of the Study:

  • To introduce and validate the Drug Problem Index (DPI), a composite measure of interstate drug abuse severity.
  • To assess the construct validity and reliability of the DPI.

Main Methods:

  • Developed the DPI using three components: drug-coded mortality, drug-defined arrest, and drug-treatment client rates.
  • Assessed variable reliability and convergent validity using a multi-trait, multi-method matrix.
  • Examined construct validity by correlating the DPI with other drug abuse consequences and related indices.

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Main Results:

  • The DPI components were selected based on their linkage to drug abuse, data availability, and documented validity.
  • Evidence supported the DPI's construct validity through its relationships with other drug abuse consequences.
  • The DPI showed a significant correlation with the Block Grant drug need index.

Conclusions:

  • The Drug Problem Index (DPI) provides a valid and reliable measure of state-level drug abuse severity.
  • The DPI can be a valuable tool for public health officials and policymakers to understand and address regional drug abuse issues.