Antecedent-Based Interventions Flashcards

A behavior analyst is designing an antecedent-based intervention for a student who engages in task refusal when presented with multi-step math worksheets. The analyst considers using high-probability request sequences (high-p). Which condition MOST critically determines whether high-p sequencing will be effective in this case?

Answer: The student must have a history of compliance with the high-p requests under similar motivating operations

High-p sequencing derives its effectiveness from behavioral momentum built through a history of reinforced compliance. If the student does not have an established reinforcement history for the high-p requests, the sequence will not generate the momentum needed to increase compliance with the low-p demand. The domain similarity and fixed ratios are not absolute requirements, and delivering high-p after problem behavior would function as a consequence, not an antecedent intervention.

During a functional behavior assessment, it is determined that a client's self-injurious behavior (SIB) is maintained by automatic negative reinforcement (sensory attenuation). The team proposes an antecedent intervention using non-contingent reinforcement (NCR). Which conceptual concern is MOST valid regarding this specific application?

Answer: NCR eliminates the establishing operation for behavior maintained by social reinforcement but may have limited impact on automatically maintained behavior

NCR works primarily by abolishing the establishing operation (EO) for behavior maintained by social consequences — the free delivery of the reinforcer reduces the motivational state that drives the behavior. When behavior is automatically maintained (e.g., sensory attenuation), the analyst cannot freely deliver the internal sensory consequence, so NCR has a conceptually weaker mechanism and is less straightforwardly applicable. The other options contain inaccurate absolute statements.

A practitioner implements stimulus control transfer to move a student's manding behavior from a physical prompt to a picture symbol. After fading, the student mands correctly in the therapy room but not in the classroom. This failure MOST directly reflects a breakdown in which antecedent variable?

Answer: Generalization across stimulus conditions was not programmed into the transfer procedure

Stimulus control transfer successfully occurred within the training context, but the new discriminative stimulus (picture symbol) did not acquire control across different settings. This is a generalization failure — specifically, failure to generalize across stimulus conditions. To address this, the practitioner should have programmed common stimuli, trained in multiple settings, or used general case programming. The motivating operation and reinforcer arguments may be partially relevant but do not most directly explain the context-specific breakdown in a successfully transferred mand.

An analyst is using environmental arrangement as an antecedent intervention to increase communication in a child with limited vocal behavior. The analyst places a preferred item in view but out of reach. A colleague argues this constitutes deprivation and may be unethical. Which response MOST accurately addresses this concern within ABA's conceptual framework?

Answer: The arrangement functions as a motivating operation (establishing operation) that increases the momentary value of communication, and is distinct from harmful deprivation when implemented briefly and systematically

Environmental arrangement leverages naturally occurring or briefly arranged establishing operations to create a momentary increase in the value of a communicative response and its reinforcer. This is a foundational, ethically sound technique in naturalistic language intervention. Brief, planned item placement out of reach is not harmful deprivation — it is a controlled EO manipulation used therapeutically. The claim that artificial EOs are inherently unethical misunderstands standard ABA practice, and the edible-only claim is factually incorrect.

A behavior analyst is comparing two antecedent interventions for escape-maintained problem behavior: (1) demand fading paired with reinforcement of compliance, and (2) pre-session satiation of the competing reinforcer. Which scenario would make pre-session satiation LESS appropriate than demand fading as the primary intervention?

Answer: When the escape-maintained behavior also produces a secondary source of automatic positive reinforcement (e.g., sensory stimulation from the SIB itself)

Pre-session satiation targets the EO by reducing the aversive value of demands (e.g., through prior engagement with preferred activities), which weakens the reinforcing value of escape. However, if the problem behavior itself produces automatic positive reinforcement (e.g., the physical movement or sensation of the SIB is inherently reinforcing), satiating the escape EO will not address that independent reinforcement source. Demand fading, which gradually shapes tolerance for demands while reinforcing compliance, addresses the escape function more directly and does not rely solely on EO manipulation. Duration and complexity are less decisive factors.

A BCBA implements a visual schedule as an antecedent intervention to reduce transition-related problem behavior. After 4 weeks, data show an initial reduction followed by a return to baseline levels of problem behavior. Without changing the schedule format, which antecedent variable should the analyst FIRST investigate as the cause of the rebound?

Answer: A shift in the motivating operations surrounding transitions, such as changes in task difficulty, schedule predictability, or the value of post-transition activities

When an antecedent intervention initially works but then loses effectiveness, the most parsimonious first hypothesis within the ABA framework is a change in the motivating operations (MOs) that the intervention was designed to address. Visual schedules reduce uncertainty and increase predictability — if the activities themselves have become more aversive, the post-transition reinforcers have lost value, or new unpredictable elements have been introduced, the schedule's ability to abolish the EO for problem behavior will diminish. Staff fidelity is worth investigating but is a procedural concern, not an antecedent variable. Conditioned aversion to the schedule is possible but less parsimonious than an MO shift.