Focus on Alcohol & Drug Abuse: Improving Service Delivery for Individuals With Co-occurring Disorders: New Perspectives on the Quadrant Model

Authors:
  • KWKatherine E. Watkins
    Katherine E. Watkins
  • AVAnna-Marie Vilamovska
    Anna-Marie Vilamovska
  • HPHarold Alan Pincus
    Harold Alan Pincus
  • BSBradley D. Stein
    Bradley D. Stein
  • KCKaren L. Celedonia
    Karen L. Celedonia
  • HSHolly A. Swartz
    Holly A. Swartz
  • RBRachel M. Burns
    Rachel M. Burns
  • MSMark J. Sorbero
    Mark J. Sorbero
  • RBRayni A. Brindley
    Rayni A. Brindley
  • EFEllen Frank
    Ellen Frank

Abstract
This column summarizes findings of a study that examined the usefulness of the quadrant model for improving service delivery for persons with co-occurring disorders. The authors discuss treatment recommendations, goals and barriers related to delivering care, policy recommendations for implementing evidence-based interventions, and strengths and limitations of the model. They conclude that although the quadrant model is useful for conceptualizing systems-level factors for improving delivery, its further development is unlikely to result in improved care at the clinical level. They call for research to develop and implement evidence-based practices targeted to specific populations of persons with co-occurring disorders.