A researcher in Mississippi measured visits to the school counselor for a group of students for three weeks in the spring. In the fall, immediately after a major hurricane, the researcher again measured the students' counselor visits to see if there had been any change. This researcher is using an interrupted time-series design.

Question

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An interrupted time-series design involves measuring a group's outcome variable over time, introducing a treatment or event that is expected to influence the outcome, and then measuring the outcome variable again over time. In this case, the major hurricane is the event that interrupted the time series, making it an interrupted time-series design.

A Researcher in Mississippi Measured Visits to the School Counselor