What type of experimental design occurs when the approval ratings of the President of the United States are tracked weekly for several weeks both before and after a major speech by the President on national television?
A)Pretest-Posttest experimental design
B)After-only with control group design
C)Time-series
D)Solomon 4 design
E)One-shot case study

Question

Quizplus · Accepted Answer

This is a time-series experimental design because data is being collected over a period of time (several weeks) both before and after the major speech by the President. This design allows for the observation of trends and changes in the approval ratings over time.

What Type of Experimental Design Occurs When the Approval Ratings