Design four quasi-experiments to test the following statement: “Playing high school sports makes kids better at academics.” Illustrate or explain how you would design each study and create a hypothetical graph of each study’s results. Finally, explain whether or not each study can support the causal statement. The four quasi-experiments you should design are:
1. A nonequivalent control group design
2. A nonequivalent control group pretest/posttest design
3. An interrupted time-series design
4. A control series design
Below is an example