Procedural Fidelity and Treatment Integrity

Foundations of Procedural Fidelity and Treatment Integrity

In behavior analysis, procedural fidelity refers to the degree to which an intervention is implemented exactly as designed. Another term used interchangeably for procedural fidelity is treatment integrity. High procedural fidelity means the RBT follows most or all of the supervisor-approved steps as written; it does not mean errors are impossible. High procedural fidelity supports consistent delivery of the written plan, while the supervisor remains responsible for evaluating whether the plan is appropriate and effective for the client.

Maintaining high treatment integrity helps a supervisor evaluate whether observed behavior changes are associated with the planned intervention. However, high treatment integrity does not by itself prove what caused those behavior changes. When evaluating a plan, supervisors consider treatment integrity alongside behavior data, assessment information, and other relevant factors. If an intervention is delivered inconsistently, it can be harder for the supervisor to determine whether progress or lack of progress reflects the plan or implementation mistakes.

Registered Behavior Technicians are responsible for implementing behavior intervention plans and skill acquisition programs with high fidelity. A written behavior intervention plan specifies antecedent strategies, replacement behaviors, and consequence strategies. A written skill-acquisition plan identifies the target response and describes relevant teaching steps, such as materials, instructions, prompting, and reinforcement. RBTs may not modify, add, or eliminate steps in an intervention plan without supervisor direction. Before implementing any protocol, an RBT should review its written steps and seek clarification from the supervisor about anything that remains unclear.