Which design requires the smallest number of participants? a. one-shot case study b. posttest-only control group c. correlational d. quasi-experiment

Option a= one shot case study

Explanation:

One-shot case study is the experimental design in this question from the options that has the smallest number of participants. In One-shot case study, there is no randomization and it deals with only a group.

In correlation experimental design requires more than one group for analysis. At least, in correlation experimental design, two variables are compared and contrast to define or explain a subject.

In QUASI- experiment design; in this design you have to group variables so, you need many participants too.

In posttest-only control group, for the analysis one will be needing more than one group.