Which of the Following Distinguishes a Time-Series Design from an Interrupted

question 23

Multiple Choice

Which of the following distinguishes a time-series design from 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.

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