These answers draw in part from “Improving Communication and Discourse: Incorporating the Nonviolent Communication Approach” by Celia Heyman, PhD, BCBA-D (BehaviorLive), and extend it with peer-reviewed research from our library of 27,900+ ABA research articles. Clinical framing, BACB ethics code references, and cross-links below are synthesized by Behaviorist Book Club.
View the original presentation →An observational statement describes specific, measurable events without interpretation or evaluation: 'During the session, the token board was not visible from the client's seat for the first 15 minutes.' An evaluative statement adds interpretation or judgment: 'You weren't organized enough today.' The distinction matters for supervisory feedback because evaluative statements evoke defensive responding, reduce the supervisee's ability to hear the content accurately, and do not specify what observable behavior would constitute improvement. Observational statements create conditions for accurate self-assessment because they describe reality rather than evaluating the person, and they point directly to what needs to change.
The NVC model has strong structural parallels with behavior-analytic principles. Observations correspond to operationally defined behavioral descriptions. The emphasis on specific requests corresponds to the behavioral practice of specifying target behaviors in observable, measurable terms. Identifying needs corresponds to functional assessment logic — identifying what maintaining contingencies are driving communication patterns. The distinction between evaluative and factual statements corresponds to the behavioral distinction between labeling and describing. Heyman's presentation frames NVC explicitly within this behavior-analytic context, making the translation between frameworks accessible for practitioners already fluent in behavioral terminology.
In NVC, genuine feelings are internal emotional states — curiosity, frustration, concern, appreciation, discomfort. Evaluative thoughts disguised as feelings typically contain an implied judgment about another person's behavior: 'I feel like you aren't taking this seriously' is not a feeling — it is an evaluation of the other person's attitude. 'I feel concerned when I see data quality declining' is a genuine feeling connected to an observation. This distinction matters because genuine feeling statements build empathy and connection; disguised evaluations escalate conflict. The behavioral test: if the 'feeling' statement implies what the other person is doing wrong, it is probably an evaluation, not a feeling.
NVC-informed family communication focuses on observational descriptions of the behaviors occurring, expressed concern for the client's wellbeing without blame assignment, explicit identification of the family's and the practitioner's shared needs (successful outcomes for the client, sustainable implementation), and specific, actionable requests for family participation in the support plan. This approach is particularly valuable in situations where families are distressed about their child's behavior or are skeptical of the recommended intervention — it creates a context of shared observation and shared purpose rather than expert prescription, which improves family buy-in and implementation fidelity.
A NVC-informed response would acknowledge the colleague's concern, identify the observation behind the evaluation, and redirect to that observation: 'It sounds like you're concerned about the frequency of that behavior — can you tell us what you've been seeing in session?' This response does not confront or correct the colleague's language, which would likely produce defensiveness, but it redirects the conversation toward the observational content that can be acted on. Over time, modeling observation-based communication in team contexts gradually shifts the communicative norms of the group, though this is a slow process that requires consistent modeling over many interactions.
A well-formed NVC request in supervision is specific (names a particular behavior rather than a general quality), present-focused (asks for what is wanted now or in the next session rather than requesting a character change), positive (states what to do rather than what to stop doing), and genuine (is actually a request rather than a demand — the supervisee has the freedom to respond, and the supervisor is prepared to engage with the response even if it is not immediate agreement). Example: 'In tomorrow's session, I'd like you to check the reinforcement hierarchy with the client's parent before starting — can you do that?' is a well-formed request. 'You need to be better prepared' is not a request; it is an evaluation.
The BACB's foundational principle that behavior analysts treat others with compassion requires behavioral operationalization — compassion as an aspirational value is difficult to measure or develop without specification of the behaviors that constitute it. NVC provides that specification: compassionate professional communication is observational rather than evaluative, connects to the other person's expressed needs and concerns rather than dismissing them, and makes specific actionable requests rather than issuing demands or vague exhortations. Heyman's behavioral framing of NVC allows BCBAs to treat compassionate communication as a skill to be developed through practice and feedback rather than a disposition some practitioners have and others lack.
NVC's emphasis on observational language directly improves documentation quality. Incident reports that contain evaluative or interpretive language — 'client was aggressive because of attention-seeking' — are less clinically useful than reports that describe specific observable events: 'Client engaged in three instances of open-hand striking toward the therapist's face within a 10-minute period; each instance was preceded by the therapist removing a preferred item and followed by the therapist leaving the room.' The observational description provides the antecedent-behavior-consequence information needed for functional assessment; the evaluative statement provides a conclusion that short-circuits the functional analysis process.
The most common challenge is the difficulty of generating observation-based descriptions without evaluation when the evaluation is how the situation is initially perceived. A supervisor who perceives a supervisee as 'not engaged' will find it difficult to describe the session observationally because the evaluation is the frame through which the session was observed. Practice in generating observational descriptions before entering evaluative communications — writing out 'what did I actually observe?' before drafting feedback — helps with this. The second common challenge is the experience of NVC requests as artificial or overly structured; this typically fades with practice as the NVC distinctions become more automatic and less effortful.
NVC as developed by Rosenberg has a mixed evidence base in the traditional empirical research sense — the model has been widely adopted in clinical and educational settings but its specific effects have been studied less systematically than some behavior analysts would prefer. From a behavior-analytic perspective, the approach can be evaluated by examining whether its specific practices — observation-based feedback, need identification, specific requests — produce the predicted outcomes: improved supervisee receptivity to feedback, reduced interpersonal conflict, better clinical communication quality. BCBAs applying NVC should collect data on their communication outcomes, evaluate whether changes in communication patterns are producing the intended effects, and adjust their approach based on the data rather than on fidelity to the NVC model for its own sake.
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Improving Communication and Discourse: Incorporating the Nonviolent Communication Approach — Celia Heyman · 1 BACB Supervision CEUs · $20
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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.