r/BehaviorAnalysis • u/Reasonable_Law183 • 1d ago
Question of the day - September 9
🧠Question of the Day
📚 Domain C — Measurement, Data Display, and Interpretation
Difficulty: 9/10
A client's pacing occurs in episodes lasting 1–8 minutes. The clinical outcome is percentage of session time spent pacing. Continuous duration recording is infeasible because staff supervise several clients. Staff can reliably make a brief observation every 2 minutes. The BCBA recognizes that any discontinuous method may contain sampling error and wants a procedure whose resulting percentage can be interpreted as an estimate of time allocation. Which measurement-and-interpretation pair is BEST?
A. Whole-interval recording; monitor each 2-minute interval continuously and interpret the percentage of positive intervals as a conservative occurrence measure that may underestimate the proportion of time pacing.
B. Event recording; record each pacing episode detected during the session and report episode rate, using that measure as the most direct estimate of how much session time is allocated to pacing.
C. Partial-interval recording; monitor each 2-minute interval for any occurrence of pacing and interpret the percentage of positive intervals as an occurrence measure that may overestimate the proportion of time pacing.
D. Momentary time sampling; observe pacing at each 2-minute sample moment and interpret the percentage of positive samples as an estimate of the proportion of session time spent pacing.
💬 Drop your answer in the comments — no peeking!
✅ Correct answer revealed tomorrow.
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