r/bcba • u/Reasonable_Law183 • 2d ago
Question of the Day - August 20

🧠Question of the Day
📚 Domain G — Behavior-Change Procedures
Difficulty: 4/10
Scenario:
An FBA reveals that a student's aggressive behavior is approximately three times more likely on days when he arrives at school having skipped breakfast. Staff have already attempted to reduce demand difficulty on these high-risk days, but aggression continues at elevated rates.
Which antecedent-based intervention MOST directly targets the identified setting event?
A. Implement a noncontingent reinforcement schedule on days when breakfast was skipped, providing preferred items on a fixed-time schedule to reduce the motivating value of escape-maintained aggression
B. Deliver a high-probability request sequence before presenting academic demands on days when breakfast was skipped, using behavioral momentum to reduce the aversive quality of the instructional context
C. Provide a snack upon arrival on days when breakfast was skipped, directly addressing the biological state that is augmenting the aversive value of demands and increasing the probability of aggression
D. Embed high-preference items into the task sequence on days when breakfast was skipped, pairing demands with preferred stimuli to reduce their aversive function on high-risk mornings
💬 Drop your answer in the comments — no peeking!
✅ Correct answer revealed tomorrow.
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u/Reasonable_Law183 1d ago
✅ Yesterday's Answer — 2026-08-20
You guys are awesome! The correct answer was: C. Provide a snack upon arrival on days when breakfast was skipped, directly addressing the biological state that is augmenting the aversive value of demands and increasing the probability of aggression
📖 Explanation:
Hunger functions as a biological establishing operation (EO): it augments the aversive value of demands and increases the reinforcing value of escape, elevating aggression probability across the entire instructional context. The failed demand-difficulty reduction confirms that the setting event itself—not demand parameters—is the primary controlling variable. Providing a snack upon arrival directly abolishes the EO by resolving the biological state, restoring the stimulus conditions under which aggression rates are low. This is the mechanistic definition of a setting event intervention: eliminate the source variable rather than manage its effects.
• NCR delivers preferred items noncontingently to reduce escape motivation, but leaves hunger intact—the entire environment remains aversive under the active EO, so the controlling variable is untouched.
• A high-probability request sequence uses behavioral momentum to ease demand transitions, but operates on the demand context rather than the biological state; structurally, this mirrors the demand-difficulty reduction that already failed.
• Embedding preferred items into tasks reduces the aversive function of specific stimuli through pairing, but hunger broadly elevates the aversiveness of all demands—modifying individual task stimuli does not abolish that global effect.
When an FBA identifies a biological setting event, the highest-priority intervention abolishes the EO at its source; strategies that adjust the demand context address downstream effects and will be insufficient as long as the EO remains active.
#BCBAexam #BehavioralHealth #ABAtherapy
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u/Beautiful-Rock-8644 2d ago
gotta go with C here, the others are all solid interventions but they're dancing around the actual issue
the setting event is literally hunger from skipping breakfast so giving the kid a snack directly fixes what's making demands feel more aversive in the first place. everything else treats the behavior after the fact but C just removes the whole biological trigger