The determination of who should be given treatment or control conditions and how those treatments or control situations affected the subject. Subjects are randomly picked for either treatment or control.

PRETEST-POSTTEST DESIGN: "The pretest-posttest design had five individuals in the control group and five in treatment."
Cite this page: N., Pam M.S., "PRETEST-POSTTEST DESIGN," in, April 28, 2013, (accessed January 15, 2021).