Question
Difficulty: medium. Skill: apply. Type: applied scenario.
An intervention reduces leaving the work area during clinic sessions, but caregiver cannot use it during daily routines. Across 4 sessions in service week 10, one observer recorded 55 minutes of observation in the early intervention clinic. Before continuing unchanged, the BCBA should:
AUse the most restrictive option first because it may produce the fastest visible change.
BKeep a plan that works in sessions even though the people implementing it cannot do it reliably.
CSelect the least intrusive effective intervention that matches the assessment results and setting.Correct answer
DRemove supports abruptly once the graph improves for two sessions.
Content quality status
machine gate passedOrigOriginal study itemThis question was created for BCBA Scenario Tutor. It is not an official, leaked, or copied BACB exam question.
ChkAutomated validation passedThe item includes an answer key, explanation, wrong-choice notes, domain label, concept tags, and source notes. Automated checks cover structure, coverage, and consistency only. No named, credential-verifiable BCBA external review has occurred, and this is not a clinical or exam-validity certification.
DateLast machine check: 2026-07-05Source note: Original v2 item upgraded from internal task/concept map; not copied from official or commercial question banks.
Explanation
Answer CThe decision point is: Does the answer choose a feasible, least intrusive, function-based intervention and monitor implementation? This item specifically tests Intervention selection from assessment, evidence, preferences, and contextual fit through a applied-client-service-scenario format. The key clue is in the stem facts: An intervention reduces leaving the work area during clinic sessions, but caregiver cannot use it during daily routines. Across 4 sessions in service week 10, one observer recorded 55 minutes of observation in the early intervention clinic. Before continuing unchanged, the BCBA should: Answer C is strongest because it follows this rule: Select the least intrusive effective intervention that matches the assessment results and setting. It fits the source-backed rule without announcing that rule in the stem. The tempting mistake is to choose a shortcut before the scenario's prerequisite is satisfied. This choice moves too quickly toward a more intrusive response. The better answer checks function, risk, feasibility, and less intrusive options first. Exam move: name the missing prerequisite first, then eliminate answers that jump to a label, a familiar procedure, a single data point, or an undocumented action.
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Why this question is hard
ClueKey scenario clueAn intervention reduces leaving the work area during clinic sessions, but caregiver cannot use it during daily routines. Across 4 sessions in service week 10, one observer recorded 55 minutes of observation in the early intervention clinic. Before continuing unchanged, the BCBA should:
TrapCommon trapThis choice moves too quickly toward a more intrusive response. The better answer checks function, risk, feasibility, and less intrusive options first.
NextIf you missed it, review Least restrictive function-based interventionThen answer a few related scenarios before moving back to broad practice.
Exam-style review notes
Structured study guidance maintained by Bifang Studio's internal editors and automated quality checks.
v4-machine-content-gateRuleIntervention selection from assessment, evidence, preferences, and contextual fit: Least restrictive function-based interventionDoes the answer choose a feasible, least intrusive, function-based intervention and monitor implementation?
ClueWhat the stem gives youAn intervention reduces leaving the work area during clinic sessions, but caregiver cannot use it during daily routines. Across 4 sessions in service week 10, one observer recorded 55 minutes of observation in the early intervention clinic. Before continuing unchanged, the BCBA should:
TrapCommon trapStart with highly intrusive punishment. This often shows up as severe or inconvenient behavior automatically justifies intrusive procedures..
FixIf you missed this itemRewrite the miss as a rule: "When I see Least restrictive function-based intervention, I must identify the relevant evidence before choosing the action." Then answer two related H domain questions without reading explanations first.
NextNext drillPractice 3 more questions tagged to Least restrictive function-based intervention, then explain why each wrong answer is weaker before moving back to mixed practice.
Source-aware internal editorial maintenance using src-bacb-bcba-tco-6ed for study organization; not an official BACB item and not externally reviewed by a named, verifiable BCBA.
Why the other choices are weaker
AChoice AThis choice moves too quickly toward a more intrusive response. The better answer checks function, risk, feasibility, and less intrusive options first.
BChoice BThis choice is weaker because it does not resolve the key prerequisite in the scenario: an intervention reduces leaving the work area during clinic sessions, but caregiver cannot use it during daily routines. Across 4 sessions in service week 10, one observer recorded 55 minutes of observation in the early intervention clinic. Before continuing unchanged, the BCBA should:
DChoice DThis choice weakens the data basis for the decision. A defensible answer must check whether the measurement, observation, or visual-analysis evidence supports the next step.
Study tags
Least restrictive function-based interventionIntervention selection from assessment, evidence, preferences, and contextual fitleast intrusivefunction-based
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Editorial transparency
Machine quality gatePublished by Bifang Studio. Content is maintained by internal editors with automated structure, coverage, and consistency checks. No content has been externally reviewed by a named, credential-verifiable BCBA; these checks do not certify clinical quality or exam validity.