What is one difference between a time-series design and an interrupted time-series design?
A) Time series examines the effect of a treatment and interrupted time series examines the effect of an outside event.
B) Time series examines the effect of an outside event and interrupted time series examines the effect of a treatment.
C) Time series involves several observations before and after the treatment/event and interrupted time series has only one observation before and after.
D) Time series involves only one observation before and after the treatment/event and interrupted time series has several observations before and after.

Question

Quizplus · Accepted Answer

A time-series design involves repeated observations of the same variables over a period of time, both before and after a treatment or intervention, to assess the effect of that treatment. An interrupted time-series design, on the other hand, specifically examines the impact of an external event or intervention that is not controlled by the researcher, by comparing observations before and after the event.

What Is One Difference Between a Time-Series Design and an Interrupted