By Matt Harrington, BCBA · Behaviorist Book Club · Clinical decision guide

Training-First vs. PDC-Guided Performance Management: Which Approach Fits Your Situation?

In This Guide

Side-by-Side Comparison
Clinical Decision Framework
Key Takeaways

One of the most consequential decisions a behavior analyst makes is not just what intervention to use, but how to approach the clinical question in the first place. For enhancing staff performance through performance assessment and the performance diagnostic checklist, the difference between an evidence-based, individualized approach and a traditional, protocol-driven one can significantly impact outcomes.

This guide lays out the key factors side by side to support your clinical decision-making.

Side-by-Side Comparison

Factor	Evidence-Based Approach	Traditional Approach
When Performance Deficits Are New	Training-First: Reasonable if the employee is new to the task and has not yet received formal instruction	PDC-Guided: Appropriate for established employees whose performance has changed — assessment identifies what changed in the environment
Time to Identify Root Cause	Training-First: Fast — assumes knowledge deficit without investigation; immediate scheduling of training	PDC-Guided: Requires structured assessment (30-60 minutes) before intervention is selected; slower start but more efficient overall
Intervention Match to Function	Training-First: Addresses knowledge/skill deficits; mismatched for resource, feedback, or task clarity problems	PDC-Guided: Matches intervention to the identified domain, whether training, job aids, resource procurement, or feedback adjustment
Staff Experience of the Process	Training-First: May be experienced as repetitive or unfair if the employee already knows the material	PDC-Guided: Often experienced as more respectful and diagnostic; shifts focus from employee blame to environmental analysis
Documentation	Training-First: Training completion records; limited data on whether the intervention addressed the actual problem	PDC-Guided: Structured assessment documentation, baseline data, intervention records, and outcome data — more complete performance management file
Effectiveness for Recurring Problems	Training-First: Often ineffective for recurring problems if the maintaining variable is not knowledge-based	PDC-Guided: Systematically revisits assessment to identify maintaining variables, reducing the likelihood of repeated ineffective interventions

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Clinical Decision Framework

Use this framework when approaching enhancing staff performance through performance assessment and the performance diagnostic checklist in your practice:

Step 1: Is intervention warranted?

Does the data support a need for intervention? Is there a meaningful impact on the individual's quality of life, safety, or access to reinforcement?

YES → Proceed to assessment NO → Document reasoning, monitor

Step 2: Have you conducted an individualized assessment?

A functional assessment should guide intervention selection. Avoid defaulting to standard protocols without individual analysis. Consider environmental variables, setting events, and private events.

YES → Select evidence-based approach matched to function NO → Complete assessment first

Step 3: Is the individual/caregiver involved in decision-making?

Goals should be co-developed. Assent and informed consent are ethical requirements. The individual's preferences and values matter in selecting both goals and methods.

YES → Proceed with collaborative plan NO → Engage in shared decision-making

Step 4: Verify your approach

✓ Is your intervention matched to the assessed function?
✓ Are you using the least restrictive effective approach?
✓ Is assent being monitored throughout?
✓ Do you have a data collection plan?
✓ Is there a plan for generalization and maintenance?

Key Takeaways

Individualization is non-negotiable. The best approach for one individual may not be appropriate for another, even with the same topography.
Assessment drives intervention. Function-based approaches consistently outperform topography-based ones in the literature.
Ethics are active, not passive. Ethical practice requires ongoing analysis, not just initial compliance.
Document everything. Both the decision to intervene and the decision not to intervene require documentation and justification.
Stay current. The evidence base in this area is evolving. What was standard practice five years ago may not reflect current best practices.

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Clinical Disclaimer

All behavior-analytic intervention is individualized. The information on this page is for educational purposes and does not constitute clinical advice. Treatment decisions should be informed by the best available published research, individualized assessment, and obtained with the informed consent of the client or their legal guardian. Behavior analysts are responsible for practicing within the boundaries of their competence and adhering to the BACB Ethics Code for Behavior Analysts.