Whole Interval Recording
In Plain Language
Marking an interval only if behavior occurred throughout the entire interval.
ABA Definition
A discontinuous measure scoring occurrence only when the target behavior continues for the full observation interval.
Everyday Example
A minute of reading is marked only if reading continues for the whole minute.
ABA Example
Staff score engagement only for intervals in which the defined engagement lasts throughout.
How It May Be Used
It tends to underestimate the proportion of time occupied.