In Experiment 1, data were collected using "partial-interval" recording. I'm just checking to make sure you remember---what does that mean? In Experiment 1, data were collected using "partial-interval" recording. I'm just checking to make sure you remember---what does that mean? an interval was marked with an occurrence if the behavior occurred at any time during the interval an interval was marked with an occurrence if at least two observers saw the behavior an interval was marked with an occurrence if three out of the four participants engaged in the behavior an interval was marked with an occurrence only if the behavior persisted throughout the entire