A Practitioner’s Guide to Measuring Procedural Fidelity

Ensuring high levels of procedural fidelity during behavior-analytic interventions is a crucial component of providing effective behavior-analytic services. However, few resources are available to help guide practitioners through measuring procedural fidelity. In fact, most published behavior-analytic research on procedural fidelity analyzes a single treatment procedure, which might not completely reflect the process of monitoring and addressing the procedural fidelity of a robust treatment package that might be necessary in clinical settings. The purpose of this article is to guide behavior analysts through the process of creating and using procedural fidelity measurement systems, with a focus on direct observation of implementation as a means of fidelity data collection. This process consists of six steps: (1) task analyze treatment procedures into measurable units; (2) assign measures to each treatment component; (3) plan the direct observation; (4) collect procedural fidelity data; (5) analyze and interpret procedural fidelity data; and (6) take action to improve procedural fidelity. Each step is described and discussed in the article.