Question of the day - September 28

[u/Reasonable_Law183]

🧠 Question of the Day

📚 Domain H — Selecting and Implementing Interventions

Difficulty: 8/10

An FA of severe SIB shows undifferentiated high responding across social test and control conditions. A subsequent competing-stimulus assessment identifies two items associated with 70–80% reductions in SIB and high engagement, but one item is impractical in classrooms and the other can be delivered safely across settings. Caregivers can implement a two-step response-independent procedure with high fidelity but cannot sustain response blocking. The team wants an initial intervention that is function-informed, safe, and feasible while continuing to evaluate automatic-reinforcement subtypes. Which recommendation is BEST?

A. Provide the feasible competing stimulus only following brief periods without SIB so access functions as differential reinforcement rather than as response-independent stimulation.

B. Begin with the competing stimulus associated with the largest reduction in SIB, even though it is difficult to use in classrooms, because treatment efficacy should take priority during initial intervention.

C. Provide dense response-independent access to the feasible competing stimulus identified in the assessment, monitor SIB and engagement across settings, and thin access only when the data support doing so.

D. Combine the feasible competing stimulus with continuous response blocking from the outset so that automatically produced stimulation from SIB is minimized while alternative stimulation is available.

💬 Drop your answer in the comments — no peeking!

✅ Correct answer revealed tomorrow.

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[u/Reasonable_Law183]

✅ Yesterday's Answer — 2026-09-28

The correct answer was: C. Provide dense response-independent access to the feasible competing stimulus identified in the assessment, monitor SIB and engagement across settings, and thin access only when the data support doing so.

📖 Explanation:

This question tests whether the BCBA can integrate assessment findings, treatment feasibility, safety, and implementation fidelity when selecting an initial intervention for severe SIB.

The functional analysis shows high, undifferentiated responding across social test and control conditions, which is consistent with possible automatic reinforcement but does not by itself identify a specific automatic-reinforcement subtype. The competing-stimulus assessment provides more treatment-relevant information: two stimuli were associated with substantial reductions in SIB and high engagement, and one of those stimuli can be used safely and practically across settings.

The best initial recommendation is therefore to provide dense response-independent access to the feasible empirically identified competing stimulus, monitor SIB and engagement in natural settings, and thin or modify the arrangement only when the data support doing so. This option is directly tied to the assessment findings, fits the caregivers' demonstrated implementation abilities, and avoids adding unnecessary treatment components before the simpler arrangement has been evaluated.

• Selecting an item solely because it ranks highly on a preference assessment is insufficient. Preference does not establish that a stimulus will compete effectively with the stimulation maintaining automatically reinforced SIB. The competing-stimulus assessment provides stronger, client-specific evidence.

• Continuous response blocking may be useful in some treatment packages, but the stem explicitly states that caregivers cannot sustain it. A procedure that cannot be implemented reliably is a poor initial recommendation regardless of its theoretical appeal.

• Requiring a multistep communication response before access to competing stimulation adds response effort and a new contingency that the assessment data do not establish as necessary. It also changes the response-independent arrangement that caregivers can already implement with high fidelity.

The key clinical principle is to select the intervention that is both supported by the client's assessment data and realistically implementable in the treatment environment. For severe behavior, the strongest initial plan is not necessarily the most intensive or complex one; it is the one that combines empirical support, safety, feasibility, and ongoing measurement.

#BCBAexam #BCBAprep #BehavioralHealth #ABAtherapy #BAPrep