BEFORE-AFTER DESIGN By N., Pam M.S. - April 7, 2013 Design of an experiment with a pre test pahase and a post test phase. Also called pre-post design. BEFORE-AFTER DESIGN: "The experiement was a before-after design." Related Psychology Terms BEFORE-AFTER DESIGN SINGLE-CASE EXPERIMENTAL DESIGN MULTIPLE COMPARISONS BOTTOM-UP DESIGN EXPECTANCY CONTROL DESIGN POSTTEST BLOCK DESIGN CATCH TRIAL BLOCK-DESIGN TEST EQUIPMENT DESIGN Cite this page: N., Pam M.S., "BEFORE-AFTER DESIGN," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/before-after-design-2/ (accessed September 23, 2021).