By Matt Harrington, BCBA · Behaviorist Book Club · April 2026 · 12 min read

Using the Performance Diagnostic Checklist to Identify and Address Staff Performance Issues

Overview & Clinical Significance

Staff performance is the proximal mechanism through which behavior analytic programming reaches clients. A treatment plan developed with precision and clinical sophistication produces outcomes only to the degree that the staff implementing it do so with accuracy, consistency, and fidelity. When staff performance falters, the consequences are not merely administrative — they are experienced directly by the clients whose behavior change depends on the quality of that implementation.

Nicole Gravina's presentation addresses a fundamental challenge in behavior analytic service settings: performance problems are common, but systematically identifying their underlying causes and selecting appropriately matched interventions is less common than it should be. Many supervisors default to retraining as the go-to response to performance deficits, regardless of what is actually maintaining the problematic performance. This approach wastes time, is often ineffective, and can generate frustration among staff who are being retrained in skills they already possess.

The Performance Diagnostic Checklist (PDC) provides a structured framework for conducting what amounts to a functional analysis of staff performance problems. Just as a functional behavior assessment attempts to identify the environmental variables maintaining a client's challenging behavior, the PDC attempts to identify the organizational and environmental variables that are maintaining a staff member's performance deficit. The clinical significance of this parallel is important: the same behavior analytic logic that underlies assessment-driven client treatment should also underlie assessment-driven staff performance management. Treating performance problems without understanding their function produces the same kinds of ineffective, unsystematic intervention that behavior analysts would criticize in any other clinical context.

Background & Context

The Performance Diagnostic Checklist was developed within the field of Organizational Behavior Management (OBM), a branch of applied behavior analysis that applies behavioral principles to the analysis and improvement of performance in organizational settings. The PDC was designed to address a practical gap: most management responses to performance deficits assume the problem is knowledge- or skill-based and default to training interventions, when in fact the most common performance problems are maintained by environmental and motivational variables that training does not address.

The PDC assesses performance deficits across four primary domains: training and knowledge (does the employee know how and why to perform the task?), task clarification and prompting (is there clear specification of what is expected, and are adequate prompts available?), resources and materials (does the employee have what they need to perform the task?), and feedback and reinforcement (are there adequate consequences for correct and incorrect performance?). Each domain represents a category of maintaining variables — and the intervention selected should match the domain identified as the primary contributor to the performance gap.

Gravina's presentation situates the PDC within the broader context of behavior analytic supervision, connecting OBM tools to the supervisory responsibilities BCBAs carry for the staff they oversee. This connection is important because it positions PDC-based assessment not as a management technique imported from another field but as a direct application of behavioral principles that behavior analysts already use in their clinical work. The same functional logic, the same emphasis on environmental determinants of behavior, and the same insistence on assessment before intervention are at work in both contexts.

Real-world applications of the PDC in ABA service settings have demonstrated its utility across a range of performance issues: implementation fidelity problems, data collection errors, inadequate parent training delivery, and inconsistent application of behavior reduction procedures. In each case, the PDC provides a structured way to move from the observation that a problem exists to the identification of what is maintaining it.

Clinical Implications

The most direct clinical implication of PDC-based performance management is improved treatment fidelity. When the variables maintaining a staff performance deficit are accurately identified and addressed, implementation accuracy tends to improve more durably than it does when interventions are selected without assessment. A staff member who is implementing a prompting hierarchy incorrectly because they were never clearly shown the correct procedure (a training/knowledge deficit) will not improve from feedback and reinforcement alone. A staff member who knows the correct procedure but is not implementing it because adequate materials are not available at the implementation site (a resources deficit) will not improve from additional training. Matching the intervention to the function of the performance problem is more efficient and more effective.

For supervisors, the PDC changes the nature of the supervisory conversation. Instead of immediately prescribing an intervention when a performance concern is identified, the supervisor first asks: what is the function of this problem? This question reframes performance management from a reactive correction process to a proactive diagnostic one. It also tends to reduce the blame orientation that can characterize uninformed performance management, because it explicitly looks for environmental variables — including supervisor behavior and organizational systems — that may be contributing to the deficit.

This has important implications for staff morale and retention. Behavior analytic service settings often struggle with high turnover among direct care staff. Part of this is structural (wages, demands, scheduling), but part is attributable to management cultures that respond to performance problems with punishment-based consequences — progressive discipline, formal warnings, termination — before exhausting function-based interventions. PDC-based management that identifies the environmental variables maintaining poor performance and addresses them directly is less aversive to staff and more likely to produce lasting improvement.

For client outcomes, the downstream benefit of better staff performance management is more consistent and accurate implementation of behavioral programs, which is the primary predictor of client progress across virtually all behavior analytic treatment contexts.

Ethical Considerations

The BACB Ethics Code (2022) addresses staff supervision in multiple places. Section 5.04 requires the design and implementation of effective supervision and training, and Section 5.05 requires feedback based on direct observation. The PDC operationalizes both of these requirements: it provides a structured assessment that informs supervision design, and it situates feedback within a functional analysis of the variables maintaining performance.

Section 1.07 addresses leading by example and creating ethical environments. Supervisors who use assessment-based approaches to performance management — rather than reactive, punitive responses to performance deficits — are modeling the kind of systematic, empirical reasoning the field values. This modeling matters because it communicates to supervisees and staff that behavior analytic principles apply to the organizational environment, not just to clients.

The equity dimensions of performance management also warrant ethical attention. When supervisors apply different standards, different feedback practices, or different intervention strategies to different staff members based on personal relationships, perceived status, or demographic characteristics, they create the conditions for bias and unfair treatment. A structured tool like the PDC, applied consistently across staff, provides a more equitable framework for performance management because it shifts the focus from subjective impressions of the employee to observable features of the performance environment.

Section 2.01 on scope of competence is relevant for supervisors implementing PDC-based assessments. The PDC is a tool with specific administration procedures, scoring criteria, and interpretation guidelines. Supervisors who use it without adequate understanding of its framework risk misidentifying performance problem categories and selecting mismatched interventions. Consulting OBM literature or seeking guidance from someone with OBM training is appropriate when implementing the PDC for the first time.

Assessment & Decision-Making

Administering the PDC involves a structured interview with the supervisor and sometimes the employee, combined with direct observation of the work environment and review of relevant documentation. The assessment covers each of the four domains — training, task clarification, resources, and feedback/reinforcement — with specific questions designed to identify whether each domain is contributing to the performance deficit.

The interview component asks about what the employee knows, what they have been shown, what is available to them in the environment, and what consequences currently follow correct and incorrect performance. The observation component verifies interview responses by checking whether prompts, materials, and feedback systems that supervisors report as present are actually present and functioning as described. Discrepancies between reported and actual conditions are themselves diagnostically important — a supervisor who believes they are providing regular feedback but whose observation records show only monthly contacts has identified an environmental variable worth addressing.

Scoring the PDC produces a profile of which domains are most implicated in the performance deficit, which informs intervention selection. Training interventions are indicated when the knowledge/training domain is the primary contributor. Job aids, visual prompts, or written task analyses are indicated when task clarification is the issue. Procurement or reorganization of materials and tools addresses resource-based deficits. Adjustments to feedback frequency, specificity, or reinforcement delivery address the fourth domain.

Data collection on performance after intervention is essential for determining whether the PDC-informed intervention was effective. Performance should be measured before intervention to establish a baseline, then monitored regularly following implementation. If performance does not improve, the assessment may need to be revisited — it is possible that the initial diagnosis was incomplete or that multiple domains are contributing.

What This Means for Your Practice

If you supervise staff who implement behavioral programs, the PDC offers a practical, principled tool for managing performance deficits more effectively. The most important shift it requires is resisting the default to training as the first response to every performance problem. Before scheduling a retraining session, ask: do I actually know what is maintaining this performance gap, or am I assuming it's a knowledge problem because that's the most familiar intervention?

A simple starting practice is to use the PDC framework informally when you first identify a performance concern — even before using the formal instrument. For each of the four domains, ask yourself: have I verified that this person knows what to do and why? Have I verified that the task is clearly specified and prompted in the environment? Have I verified that the materials and resources needed are available and accessible? Have I verified that adequate and contingent feedback is being delivered? Answering these questions honestly often reveals that the performance problem is at least partly maintained by environmental conditions the supervisor controls — which shifts the solution from training the employee to improving the supervisory environment.

Organizations that implement PDC-based performance management systematically tend to see improvements not only in individual performance cases but in staff culture more broadly. When staff experience performance management as diagnostic and collaborative rather than punitive and reactive, they are more willing to self-report performance difficulties and more engaged in developing solutions.