RBT Plan

RBT exam practice question: Data Collection and Graphing

Data Collection and GraphingDifficulty 2/5

During a 20-minute session an RBT records that a learner asks for help 8 times. Which measure has the RBT collected, and what is the rate?

  1. AFrequency; 0.4 responses per minute
  2. BLatency; 2.5 minutes
  3. CPartial-interval; 40% of intervals
  4. DDuration; 8 minutes
Show answer and rationale

Correct: A. Counting every instance is frequency (a continuous measure). Rate converts the count to a standard time unit: 8 ÷ 20 minutes = 0.4 per minute, which lets sessions of different lengths be compared.

  • D — Duration measures how long each response lasts, not how many occurred.
  • B — Latency is the time from the instruction to the start of the response.
  • C — No intervals were used; the RBT counted each instance.

Concept being tested

13 questions. Continuous and discontinuous measurement, permanent product, entering data, graphs and trends, describing behavior objectively, and the risks of unreliable data. — 17% of the exam. Study guide for Data Collection and Graphing.

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Primary references

  1. RBT Test Content Outline (3rd ed.), effective January 1, 2026 — Behavior Analyst Certification Board (BACB) · primary · retrieved 2026-09-21, verified 2026-09-21
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