To prepare accessible options for an ABA preference assessment, verify that each object, activity, person, symbol, or digital option is recognizable, available, safe, and reachable through the person's usual communication and access methods. Offer exploration, check representation accuracy, control position and effort, preserve AAC, and provide a decline-all response. Inaccessible options create assessment error, not evidence of low preference.

Verify option identity

Confirm what each object, picture, word, sound, person, or device action means to Yara. Use the real activity or a tested representation when practical. Do not assume a generic icon carries the intended meaning.

Check actual availability

Confirm the activity can occur under the stated conditions, the person is available, the device works, and staff can deliver access as explained. Record limits such as duration, location, schedule, internet, or shared ownership.

Design for sensory and motor access

Check contrast, size, sound, lighting, spacing, reach, switch access, positioning, fatigue, and unintended effort differences. Keep AAC in its functional position. One option should not win simply because it is easier to perceive or activate.

Provide exploration

Let Yara sample unfamiliar options in a neutral, accessible way before formal scoring. Explain any later removal. Record whether exploration occurred, how long it lasted, and whether the option changed before assessment.

Balance presentation

Use a predeclared location and rotation rule suited to the format. Keep option representations comparably visible and reachable. Record presentation errors, accidental activation, unavailable items, and partner cues as trial conditions or invalidity reasons.

Rehearse all response routes

Verify that Yara can select, reject one option, reject all, ask for more information, pause, stop, and correct a mistaken choice. Define partner responses. A no response remains ambiguous until access and understanding are credible.

Protect Yara's choice and basic access

For Yara, preserve AAC and other effective communication, privacy, ordinary supports, adequate food and water, bathroom, mobility, prescribed care, pain response, rest, supportive relationships, and emergency help. Verify health and safety before presenting options. Use applicable consent and assent processes, honor refusal and withdrawal during nonemergency participation, and never classify an access failure as low preference.

Build Yara's evidence ladder

Begin with Yara's accessible direct report and ordinary voluntary choice. Add source-labeled caregiver or staff suggestions, natural engagement, structured preference sampling, or response-consequence testing only when the decision needs stronger evidence. Keep preference, familiarity, availability, selection, engagement, reinforcer function, treatment choice, and outcome distinct. State what each layer can and cannot show.

Explain the assessment to Yara

Use Yara's preferred language and communication mode to explain the purpose, option set, method, duration, access, presentation, any removal, response definitions, privacy, risks, stop route, possible decisions, and uncertainty. Invite nomination, rejection, correction, pause, and withdrawal. Meaningful choice includes the ability to choose none, change a choice, or value an activity outside treatment.

Build Yara's accessible option-readiness register

Create one versioned accessible option-readiness register for the school-linked preference assessment. Include purpose, client priority, option source, setting, method, definitions, access, health, consent and assent when applicable, ordinary supports, exposure, position, prompts, refusal, no response, invalidity, stops, integrity, raw data, client report, uncertainty, qualified authority, decision, safeguards, revision, and recheck trigger.

Work through Yara's example

Yara's register contains 12 proposed options. Ten pass recognition, availability, motor, visual, and communication checks. One photo does not represent the actual activity to Yara, and one tablet option cannot be opened with her current access switch. Both are held. After a live preview and switch repair, all 12 pass. Report 10/12 initial readiness and 12/12 after correction as separate versions. Preserve planned and valid units, raw counts, denominators, source labels, access states, missing conditions, refusals, stops, corrections, versions, decisions, and open work. This fictional example demonstrates one assessment control. It supplies no universal rank, preferred-item label, reinforcer function, legal conclusion, treatment effect, or outcome guarantee.

Use Yara's evidence for a bounded decision

Identify the exact decision and qualified owner before expanding assessment. For Yara, document supporting and conflicting evidence, client preference, option and method limits, access, health, alternatives, burden, further evidence, selected action, implementation check, accessible explanation, disagreement route, and review trigger. Choose the least burdensome adequate path and stop collection that cannot change action.

Review Yara's data without causal shortcuts

For Yara, show raw selections or engagement and denominators, representative exposure, direct and proxy sources, access, health context, recent availability, refusals, invalid trials, position, method integrity, missingness, alternatives, and uncertainty. Relative preference supports a candidate under sampled conditions. A reinforcement claim requires a response-consequence relation and evidence suited to that claim.

Address Yara's main assessment risk

A small icon and an unreachable tablet could make Yara appear to avoid valued activities. Repeated prompting would hide the access failure. The register treats representation and access as system responsibilities. Review definitions, client meaning, option source, access, health, method fit, exposure, position, removal, integrity, comparison, causal scope, and authority separately. A familiar format cannot rescue inaccessible options or justify unnecessary burden. Technical ranking never overrides Yara's current communication or basic access.

Choose Yara's next assessment action

Yara chooses the final display size and spacing, confirms the live previews, and practices selecting, declining, pausing, and changing her choice. Record qualified owners, current safeguards, method and option versions, evidence tasks, due dates, validation, client communication, uncertainty, decision, and next review. Preserve the original data when the account changes. A later result adds an auditable version instead of rewriting what Yara selected under earlier conditions.

Apply current preference-assessment sources to Yara's method

For Yara, the CASP public summary gives high-level context for ABA treatment of autistic people. The current BACB Ethics Code addresses competence, client involvement, understandable communication, consent and assent when applicable, assessment, intervention, risk, documentation, and evaluation for covered people. BACB has no separate organizational jurisdiction. The BCBA outline includes preference-assessment design and evaluation as examination content, not a client protocol or practice authority.

Use preference-method research carefully for Yara

For Yara, Lill, Shriver, and Allen synthesized 65 articles into SPADS to help trained practitioners choose context-specific stimulus-preference assessment procedures. It identifies candidate reinforcers rather than proving a consequence's functional effect. A seven-participant DeLeon and Iwata study compared paired-stimulus, multiple-stimulus-with-replacement, and MSWO formats and described its results as preliminary. A two-child Kang study found removal-related problem behavior in paired and MSWO sessions under its tested conditions. These studies guide questions and safeguards; they do not create a universal method or threshold.

Protect assent and communication access for Yara

Breaux and Smith offer assent-focused practice guidance in an evolving evidence base. ASHA states that AAC users should always have access to their communication tools or devices. For Yara, preserve an accessible way to nominate, select, reject, pause, stop, correct, and change a choice. Do not require speech, eye contact, one motor form, compliance, or loss of essential access as the price of participation.

Close Yara's preference review

Review the accessible option-readiness register with Yara, the responsible clinician, access and operational owners, and the specialists named in the manifest. Verify that options remain accessible and optional, basic access is protected, methods fit the question, refusals and invalid trials remain visible, preference and reinforcement claims stay separate, and decisions remain within authority. Keep this page draft and noindex until every required review is complete.

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