RBT RBT Task List 2nd Edition Measurement and Data 4 — Questions and Answers
Question 1: A client engages in self-injurious behavior (SIB) multiple times within a single minute. Which measurement method would most accurately capture the intensity of this behavior?
- Frequency recording
- Momentary time sampling
- Partial interval recording
- Severity rating scale (Correct answer)
Correct answer: Severity rating scale
A severity rating scale captures the intensity dimension of behavior, which frequency alone cannot adequately represent for high-rate SIB.
Question 2: When using whole interval recording, a behavior is scored as occurring only if it:
- Occurs at least once during the interval
- Occurs throughout the entire interval (Correct answer)
- Occurs at the moment the interval ends
- Occurs more than halfway through the interval
Correct answer: Occurs throughout the entire interval
Whole interval recording requires the behavior to be present for the entire duration of the interval to be counted as occurring.
Question 3: An RBT records 'start time' and 'stop time' for each tantrum episode. This is an example of which measurement procedure?
- Frequency recording
- Duration recording (Correct answer)
- Latency recording
- Inter-response time recording
Correct answer: Duration recording
Duration recording measures how long a behavior lasts by recording start and stop times for each episode.
Question 4: A BCBA asks an RBT to measure how long it takes a client to begin a task after the instruction is delivered. Which measure should the RBT use?
- Duration
- Latency (Correct answer)
- Frequency
- Inter-response time
Correct answer: Latency
Latency measures the time between the presentation of a stimulus (instruction) and the onset of a response.
Question 5: Which of the following scenarios reflects a problem with interobserver agreement (IOA) that an RBT should report to a supervisor?
- Two observers score the same data sheet identically
- One observer records 10 instances and the other records 8 instances (Correct answer)
- IOA is calculated at 95% or above
- Two observers use the same operational definition
Correct answer: One observer records 10 instances and the other records 8 instances
Discrepancies between observers (10 vs. 8 occurrences) indicate low IOA, which threatens data reliability and should be reported.
Question 6: An RBT collects data on whether a client is on-task every 5 minutes by glancing at the client at each 5-minute mark. This is an example of:
- Partial interval recording
- Whole interval recording
- Momentary time sampling (Correct answer)
- Continuous duration recording
Correct answer: Momentary time sampling
Momentary time sampling involves observing whether the behavior is occurring at the exact moment the interval ends, not throughout the interval.
Question 7: If a client correctly completes 14 out of 20 discrete trial training (DTT) opportunities, what is the percentage correct?
- 60%
- 65%
- 70% (Correct answer)
- 75%
Correct answer: 70%
14 ÷ 20 × 100 = 70%; percentage correct is calculated by dividing the number correct by total opportunities and multiplying by 100.
RBT RBT Task List 2nd Edition Measurement and Data 4
A client engages in self-injurious behavior (SIB) multiple times within a single minute.
Which measurement method would most accurately capture the intensity of this behavior?