A time-sampling data collection method used to estimate the overall occurrence of a behavior by measuring the number of intervals during which the behavior occurs at any time within an interval. 

5th Edition Task List

C-7  Design and implement sampling procedures (i.e., interval recording, time sampling).

6th Edition TCO

C.6 Design and apply discontinuous measurement procedures (e.g., interval recording, time sampling).

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It’s all too easy to mix up continuous and discontinuous measurement procedures. Need some help discriminating between the two? Get clarity with help from PTB founder Dana Meller.