Data-Based Decision Making in School Counseling: Utilizing Multiple Single-Case Indicators to Evaluate Interventions

Ryan J. McGill, Kelly S. Kennedy, R. T. Busse


As the field of professional school counseling continues to move toward a data-based decision making model of service delivery, there is a need for dissemination of best practice methods for evaluating whether school-based counseling interventions are effective. In that vein, the purpose of this article is to review several methods of data-based decision making within a single-case outcome evaluation model, as well as their potential applications for school counseling interventions. To aid practitioners, the potential use of these methods is demonstrated in a case example and accompanying graphic displays.


school counseling, single-case design, intervention outcomes, effect sizes, evaluation

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