RBT Data Collection & Graphing Practice Questions
Data Collection & Graphing makes up 9 of every 50 questions on a Tigertest RBT practice test. Here are 10 of the 36 questions on it, each with the answer and the reason.
Updated by the Tigertest team. Based on the BACB RBT Test Content Outline (3rd ed.) and the RBT Ethics Code (2.0). Original questions; 50 per test, weighted like the real exam.
1. A technician tallies every time a client raises a hand during a 30-minute group lesson. Which measure is this?
- A.Momentary time sampling
- B.Frequency
- C.Duration
- D.Latency
Answer: B. Counting each occurrence of a behavior is frequency (count) recording. Duration would time how long each hand raise lasted.
2. A client screams 12 times in a 2-hour session. What is the rate per hour?
- A.24 per hour
- B.2 per hour
- C.12 per hour
- D.6 per hour
Answer: D. Rate is count divided by observation time: 12 screams over 2 hours is 6 per hour. Multiplying instead of dividing gives 24.
3. A technician starts a stopwatch when a tantrum begins and stops it when the tantrum ends. Which measure is this?
- A.Duration
- B.Interresponse time
- C.Latency
- D.Frequency
Answer: A. Duration records how long a behavior lasts from onset to offset. Latency would time the gap between an instruction and the start of a response.
4. Latency is the time between:
- A.The end of one response and the next
- B.Two sessions on the same day
- C.An instruction and the response
- D.The start and end of one response
Answer: C. Latency runs from the antecedent (such as an instruction) to the onset of the response. The time between two responses is interresponse time.
5. Interresponse time (IRT) is the time between:
- A.Onset and offset of one response
- B.The start of two sessions
- C.Two successive responses
- D.An instruction and a response
Answer: C. IRT measures the time elapsed between two consecutive responses. It is useful when the goal is to slow a behavior down, such as fast eating.
6. A client takes 45 seconds to begin putting on shoes after being asked. Which measure best captures this goal?
- A.Latency
- B.Frequency
- C.Partial interval
- D.Duration
Answer: A. The concern is how long it takes to start after the instruction, which is latency. Duration would time how long putting on the shoes took.
7. In partial interval recording, an interval is scored if the behavior occurs:
- A.At least twice in the interval
- B.For the whole interval
- C.At the end of the interval
- D.At any point in the interval
Answer: D. Partial interval scores an interval if the behavior happens at any time during it. Whole interval needs the behavior throughout the interval.
8. Compared with the time the behavior really occurs, partial interval recording tends to:
- A.Measure only latency
- B.Overestimate the behavior
- C.Underestimate the behavior
- D.Measure it exactly
Answer: B. Because one brief occurrence scores the whole interval, partial interval tends to overestimate how much the behavior occurs. It suits behaviors you want to decrease.
9. Compared with the time the behavior really occurs, whole interval recording tends to:
- A.Count every response
- B.Underestimate the behavior
- C.Overestimate the behavior
- D.Measure it with no error
Answer: B. An interval is scored only if the behavior lasts the entire interval, so brief lapses make it underestimate. It suits behaviors you want to increase, like on-task behavior.
10. In momentary time sampling, the technician records whether the behavior is occurring:
- A.Throughout the whole interval
- B.Only after an instruction
- C.At any time in the interval
- D.At the end of the interval
Answer: D. Momentary time sampling checks only at the end of each interval. It lets a technician watch several clients or run a lesson between checks.
Practice all 36 data collection & graphing questions, and the rest of the 200-question bank, in the free RBT training sets. Questions you miss come back until you have mastered them.
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