does quasi experimental use pretest and posttest
Pretest-Posttest Design: Definition & Example A pretest-posttest design is usually a quasi-experiment where participants are studied before and after the experimental manipulation. Remember, quasi-experimental simply means participants are not randomly assigned.n a pretest-posttest design, there is only one group and all of them are in the experimental condition. The reason you run a pretest-posttest experiment is to see if your manipulation, the thing you're looking at, has caused a change in the participants.