To determine whether a new anti-drug campaign has had an impact on students' usage of drugs, an educator compares students' drug usage during the five weeks before and the five weeks after the anti-drug campaign. Which quasi-experimental design characterizes the educator's investigation?
A) single-case experimental design
B) cross-lagged panel design
C) time-series design
D) nonequivalent-groups design

Question

Quizplus · Accepted Answer

The educator is comparing students' drug usage over time, specifically before and after the anti-drug campaign. This type of design is known as a time-series design, as it involves measuring the same variable (drug usage) at multiple points in time. The other options, single-case experimental design, cross-lagged panel design, and nonequivalent-groups design, do not necessarily involve measuring a variable over time in the same way that a time-series design does.

To Determine Whether a New Anti-Drug Campaign Has Had an Impact