If in a single-subject study, what does it mean if the percentage of nonoverlapping data (PND) is 50%?
A) The result is statistically significant.
B) Half the responses made by the participant are "good" responses and the other half are "bad" responses.
C) There is a 50% chance that the participant will exhibit the target behavior on any given observation.
D) Half the responses in the treatment condition are more extreme than the most extreme response in the baseline condition.

Question

Quizplus · Accepted Answer

PND measures the extent to which data points in the treatment phase do not overlap with data points in the baseline phase. A PND of 50% means that half of the responses during the treatment phase are more extreme (either higher or lower, depending on the direction of desired change) than the most extreme response observed during the baseline phase. This does not necessarily imply statistical significance, nor does it directly relate to the quality of responses or predict future behavior.

If in a Single-Subject Study, What Does It Mean If