RBT - Registered Behavior Technician Assessment Test #2 1 ā Questions and Answers
Question 1: A client who just ate a large meal shows little interest in working for food reinforcers. This change in the effectiveness of food as a reinforcer is best explained by:
- Stimulus discrimination
- An abolishing operation (AO) (Correct answer)
- Negative punishment
- Sensory extinction
Correct answer: An abolishing operation (AO)
An abolishing operation (AO) is a type of motivating operation that decreases the value of a reinforcer and the behavior it maintains. A full stomach temporarily reduces the reinforcing effectiveness of food.
Question 2: During a paired stimulus preference assessment, the RBT presents:
- One item at a time and records approach or avoidance
- All available items in an open array simultaneously
- Two items side by side and records which item the client selects (Correct answer)
- Items contingent on correct responding to identify reinforcers
Correct answer: Two items side by side and records which item the client selects
In a paired stimulus (also called forced-choice) preference assessment, items are presented two at a time across multiple trials. The item chosen most often is ranked highest as a potential reinforcer.
Question 3: When a behavior that was previously reinforced no longer produces reinforcement, a sudden temporary increase in the rate, intensity, or duration of that behavior is called:
- Spontaneous recovery
- Behavioral contrast
- An extinction burst (Correct answer)
- Resurgence
Correct answer: An extinction burst
An extinction burst is the temporary escalation of a target behavior when extinction is first implemented. RBTs must be prepared for this predictable phase and maintain consistent extinction procedures.
Question 4: A client earns a token after every 4 correct responses, regardless of how much time has passed. This schedule of reinforcement is:
- Fixed interval (FI-4)
- Variable ratio (VR-4)
- Variable interval (VI-4)
- Fixed ratio (FR-4) (Correct answer)
Correct answer: Fixed ratio (FR-4)
A fixed ratio (FR) schedule delivers reinforcement after a set, predictable number of responses. FR-4 means the client must emit exactly 4 correct responses to earn each reinforcer.
Question 5: A stimulus in the presence of which a behavior has been reinforced in the past, and is therefore more likely to occur, is called a:
- Conditioned punisher
- S-delta (Sā)
- Discriminative stimulus (SD) (Correct answer)
- Unconditioned reinforcer
Correct answer: Discriminative stimulus (SD)
The discriminative stimulus (SD) signals that reinforcement is available for a specific behavior. It does not cause the behavior but increases its probability because of the reinforcement history associated with it.
Question 6: Momentary time sampling differs from partial-interval recording in that the observer records behavior:
- If it occurs at any point during the interval
- Continuously throughout the entire interval
- Only at the moment the interval ends (Correct answer)
- As a frequency count within each interval
Correct answer: Only at the moment the interval ends
In momentary time sampling, the observer only checks whether the behavior is occurring at the precise instant the interval ends (e.g., the last second). Partial-interval recording scores the behavior if it happens at any point during the interval.
RBT - Registered Behavior Technician Assessment Test #2 1
A client who just ate a large meal shows little interest in working for food reinforcers.
This change in the effectiveness of food as a reinforcer is best explained by: