Dr.Smith wants to see how his treatment works on childhood depression.In his experiment, he randomizes children to a treatment group and a no-treatment control group and then examines the differences between the groups' symptoms.This type of design would be:

Question

Quizplus · Accepted Answer

This is a between-subjects design since Dr.Smith is comparing two different groups (treatment group and control group) rather than exposing the same group to multiple conditions (within-subjects design). Randomizing children to a treatment and control group helps to ensure that the groups are comparable at the beginning of the study, which improves the validity of the results. The reliability of the study is not addressed in this scenario.

DrSmith Wants to See How His Treatment Works on Childhood