I am using pretest-posttest c research design for my study involving self reporting questionnaires. The overall design is a 2 (sessions: pretest and posttest) × 3 (conditions: images of thin models, images of average size models and no models) × 2 (gender) mixed factorial design. I am confused about entering the data in SPSS. Please help me, whether I will have to enter the data of pretest and posttest in same sheet (data set) or in different sheets?
Really need this help before my submission date. Early response will be highly appreciated.