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

Person-Centered Decision-Making in the Assessment and Treatment of Stereotypy: A Framework for Ethical, Individualized Practice

Overview & Clinical Significance

Few topics in contemporary behavior analysis generate as much ethical debate as the treatment of stereotypy. Liliana Dietsch-Vazquez's session enters this conversation at a critical moment, when the field is actively re-evaluating long-held assumptions about which behaviors warrant intervention, who should make that determination, and what constitutes an acceptable treatment outcome.

Stereotypy, broadly defined as repetitive motor movements, vocalizations, or object manipulation without an apparent social function, has historically been a default target for reduction in many ABA programs. The rationale for intervention has varied: stereotypy may interfere with learning, attract social stigma, be physically harmful, or be maintained by automatic reinforcement that makes it resistant to environmental manipulation. Each of these rationales carries different ethical weight, and Dietsch-Vazquez's framework asks clinicians to evaluate each case individually rather than applying a blanket reduction approach.

The person-centered framing is deliberate and significant. Traditional approaches to stereotypy treatment have often centered the clinician's or organization's judgment about whether the behavior is problematic. A person-centered approach centers the individual's experience, preferences, and quality of life. This shift does not mean that stereotypy should never be treated. It means that the decision to intervene requires a more thorough analysis than simply documenting the behavior's occurrence and selecting a reduction procedure.

Dietsch-Vazquez draws on expertise from diverse fields, acknowledging that behavior analysis does not hold a monopoly on understanding repetitive behavior. Occupational therapy, neurology, developmental psychology, and the autistic self-advocacy community each offer perspectives that can inform clinical decision-making. The willingness to seek knowledge outside the boundaries of a single discipline reflects a mature clinical orientation that prioritizes the individual over professional insularity.

The use of case studies to illustrate the decision-making framework grounds the presentation in clinical reality. Stereotypy presents differently across individuals, contexts, and developmental stages. A framework that works for one presentation may be entirely inappropriate for another. By walking through specific cases, Dietsch-Vazquez demonstrates how the same assessment principles produce different clinical decisions depending on the individual's unique combination of factors.

Background & Context

The treatment of stereotypy in behavior analysis has evolved through several distinct phases. Early behavioral research approached stereotypy primarily as a behavior to be eliminated, using procedures ranging from differential reinforcement to more intrusive interventions. The primary concern was that stereotypy competed with adaptive behavior, and the assumed clinical benefit of reduction was taken largely for granted.

Subsequent decades brought more nuanced understanding. Research established that stereotypy serves multiple functions, including sensory regulation, emotional self-management, and communication. The concept of automatic reinforcement, where the behavior produces its own reinforcing consequences independent of social mediation, provided a behavioral framework for understanding why stereotypy persists across diverse environments. However, automatic reinforcement also became something of a clinical shorthand that sometimes discouraged further functional analysis. If a behavior was automatically reinforced, some clinicians stopped asking what purpose it served for the individual.

The neurodiversity movement has contributed a perspective that was largely absent from early behavioral research on stereotypy. Autistic self-advocates have argued that stimming, the preferred term in the autistic community for many forms of stereotypy, serves important regulatory functions and that targeting it for reduction can be experienced as an assault on identity and wellbeing. This perspective does not negate the existence of harmful stereotypy, but it challenges the assumption that all repetitive behavior is pathological or appropriate for intervention.

Dietsch-Vazquez positions her framework at the intersection of these perspectives. The practical functional analysis she proposes is designed to identify the combined triggers and maintaining variables of stereotypy in a way that goes beyond the standard functional analysis protocol. Standard functional analyses typically test for social positive reinforcement, social negative reinforcement, and automatic reinforcement. A practical functional analysis for stereotypy might additionally assess the behavior's relationship to emotional states, sensory needs, environmental stressors, and the individual's reported experience of the behavior when verbal report is available.

The collaborative emphasis in the session, including seeking resources from outside the behavior analysis field, reflects a growing recognition that stereotypy exists at the intersection of behavioral, neurological, sensory, and psychological factors. A behavior analyst who treats stereotypy solely through a behavioral lens may miss important functional information that an occupational therapist, neurologist, or the individual themselves could provide. Dietsch-Vazquez's session encourages clinicians to expand their assessment toolkit rather than restricting it to behavior analytic methods alone.

Clinical Implications

The person-centered decision-making framework Dietsch-Vazquez proposes transforms the clinical question from how do we reduce this stereotypy to should we intervene, and if so, how and toward what goal. This reframing has cascading implications for every phase of clinical practice.

The assessment phase becomes more comprehensive and more individualized. Rather than documenting topography, frequency, and duration and then selecting an intervention, the clinician first evaluates the impact of the stereotypy on the individual's quality of life. Questions at this stage include: Does the behavior cause physical harm? If so, what type and severity? Does the behavior significantly interfere with the acquisition of functional skills during instructional periods, and has this been empirically verified rather than assumed? Does the individual report distress associated with the behavior, or does the behavior appear to serve a regulatory function? What do the individual and their family identify as priorities regarding this behavior? The answers to these questions determine whether intervention is indicated, and if so, what the appropriate treatment target should be.

When intervention is indicated, the person-centered framework favors approaches that increase the individual's repertoire rather than simply suppressing the stereotypy. Teaching functional alternatives that serve the same sensory or regulatory function, modifying environments to reduce triggers that increase stereotypy to interfering levels, and establishing times and places where the behavior can be engaged in freely are all strategies that respect the individual's needs while addressing legitimate clinical concerns.

The framework also acknowledges that different stakeholders may have different perspectives on stereotypy that the clinician must navigate. A teacher may want stereotypy eliminated from the classroom because it is disruptive. A parent may want it reduced because it attracts public attention. The individual may find it calming and resent any attempt to suppress it. The clinician's role is to evaluate these perspectives against the ethical framework, prioritizing the individual's wellbeing while educating stakeholders about the function the behavior may serve.

Collaboration with professionals outside behavior analysis is a practical implication that many clinicians will need to develop skills for. When stereotypy has a suspected sensory component, consultation with an occupational therapist who can conduct a sensory assessment provides information that informs behavioral intervention design. When stereotypy is associated with medical conditions such as seizure disorders or gastrointestinal distress, medical consultation is essential. When the individual has the verbal skills to discuss their experience of the behavior, their self-report should be a primary data source.

For supervision, this framework means training supervisees to think critically about when stereotypy warrants intervention rather than assuming it always does. Supervisees should be able to articulate a clinical rationale for targeting stereotypy that goes beyond its appearance being atypical. If the only justification for reducing stereotypy is that it looks unusual, the supervisor and supervisee should explore whether that justification meets the ethical standard for intervention.

Ethical Considerations

The ethical landscape of stereotypy treatment is undergoing genuine transformation, and Dietsch-Vazquez's session directly engages with this process. The BACB Ethics Code provides several touchpoints for the ethical analysis of stereotypy intervention.

Code 2.01 mandates that behavior analysts provide services in the client's best interest. When the client is an individual whose stereotypy serves a regulatory function, the question of best interest becomes complex. Suppressing a behavior that helps the individual manage sensory input or emotional states without providing an adequate functional alternative may technically reduce the target behavior while simultaneously reducing the individual's wellbeing. The clinician must weigh the specific harms associated with the stereotypy against the potential harms of intervention, including the loss of a regulatory mechanism and the message conveyed to the individual that their natural behavior is unacceptable.

Code 2.14 addresses minimizing the use of restrictive procedures, which has direct relevance to stereotypy treatment. Historically, some stereotypy interventions have involved physically preventing the behavior through response blocking or environmental restriction. These approaches are among the most restrictive in the behavioral toolkit and require the strongest clinical justification. A person-centered framework demands that less restrictive alternatives be thoroughly explored and documented before any restrictive procedure is considered, and that the criterion for restrictive intervention be physical harm to the individual rather than social inconvenience or clinician preference.

The concept of assent, while not yet a formal requirement in the BACB Ethics Code to the same degree as consent, is relevant to stereotypy treatment. When an individual resists or protests efforts to reduce their stereotypy, that resistance is clinical data. A person-centered approach takes assent seriously, recognizing that the individual's behavioral responses to intervention are informative about whether the intervention is in their best interest.

Code 2.09 addresses the behavior analyst's responsibility regarding treatment efficacy. If an intervention reduces stereotypy but does not improve the individual's functional outcomes, quality of life, or wellbeing, its efficacy in any meaningful clinical sense is questionable. This ethical standard supports the person-centered framework's emphasis on evaluating treatment outcomes holistically rather than through the narrow lens of target behavior reduction.

Respecting diversity is embedded throughout the ethics code and is particularly relevant here. The neurodiversity perspective challenges behavior analysts to examine whether their clinical standards reflect genuine clinical concern or cultural bias against behavioral difference. When stereotypy is targeted for reduction primarily because it is atypical, the clinician may be imposing neurotypical behavioral standards rather than serving the client's actual needs. Dietsch-Vazquez's framework provides the assessment tools to distinguish between these motivations.

Assessment & Decision-Making

The decision-making framework for stereotypy assessment and intervention can be organized as a series of clinical questions that the practitioner works through sequentially. Each question builds on the previous one, and the answer at each stage determines whether to proceed to the next or to conclude that intervention is not warranted.

The first question is whether the stereotypy causes direct physical harm to the individual. This includes self-injurious forms such as head-banging, hand-biting, or eye-poking, as well as collateral harm from the behavior such as callus formation, tissue damage, or risk of injury during motor stereotypies in dangerous environments. If direct physical harm is present, intervention to protect the individual is indicated, though the form of intervention should still be guided by the person-centered framework.

The second question is whether the stereotypy significantly interferes with functional skill acquisition. This requires empirical verification rather than assumption. The clinician should collect data comparing learning during periods of high and low stereotypy to determine whether a functional relationship exists between stereotypy and skill acquisition. If the interference is minimal or can be addressed through environmental modifications such as scheduling stereotypy breaks between instructional trials, reduction may not be necessary.

The third question is whether the stereotypy creates significant barriers to the individual's participation in preferred activities, social relationships, or community access. This assessment should reflect the individual's perspective and priorities, not only the clinician's or caregiver's judgment about what activities the individual should be participating in.

The fourth question, asked only when the previous assessments indicate that intervention may be warranted, is what function the stereotypy serves for the individual. The practical functional analysis Dietsch-Vazquez proposes goes beyond standard functional analysis methodology to examine sensory, emotional, and contextual factors. Collaboration with occupational therapists, medical professionals, and the individual themselves is essential at this stage.

If assessment indicates that intervention is warranted, the treatment design should prioritize teaching functional alternatives that serve the same purpose as the stereotypy, modifying environments to reduce triggers, and establishing acceptable times and contexts for the behavior rather than pursuing total elimination. Treatment goals should be defined in terms of functional outcomes such as improved learning, increased safety, or greater community participation rather than simply reduced stereotypy frequency.

Ongoing assessment during intervention should monitor not only the target behavior but also collateral effects on the individual's emotional state, engagement in activities, and overall quality of life. If stereotypy reduction is accompanied by increases in other challenging behaviors, decreases in social engagement, or signs of emotional distress, the intervention should be re-evaluated. A treatment that successfully reduces stereotypy but produces these collateral effects has not served the individual's best interest.

What This Means for Your Practice

Before you next write a treatment goal targeting stereotypy, pause and work through the decision framework. Ask yourself: Is this behavior causing physical harm? Have I empirically verified that it interferes with learning rather than assuming interference? Does the individual or their family want this behavior addressed, and if so, what specific outcome are they seeking? Have I considered what function the behavior serves and whether I can honor that function while addressing the concern?

If your current caseload includes clients with stereotypy reduction goals, review those goals through a person-centered lens. For each one, articulate the specific clinical justification for intervention. If the justification amounts to the behavior looks unusual or the teacher finds it distracting, reconsider whether the goal meets the ethical standard for intervention. Educating stakeholders about the function of stereotypy is sometimes a more appropriate clinical response than reducing the behavior.

Develop referral relationships with occupational therapists and other professionals who can contribute to stereotypy assessment. When stereotypy has a sensory component, an occupational therapy evaluation provides information that directly informs your intervention design. When medical factors may be contributing, coordinating with the individual's medical team ensures that treatable conditions are not being masked by behavioral intervention.

In supervision, teach your trainees to think critically about stereotypy. Present case examples where the appropriate clinical decision was not to intervene, alongside cases where intervention was clearly indicated. Help supervisees develop the analytical skills to distinguish between these scenarios rather than defaulting to reduction for all stereotypy presentations.

Dietsch-Vazquez's framework does not make stereotypy treatment simpler. It makes it more honest. The result is clinical practice that serves individuals based on their actual needs rather than on assumptions about what behaviors need to look like.