Glossary / Lexicon

Within-subjects design refers to a research design in which the different groups of scores are all obtained from the same group of participants. It is a research paradigm in which the same experimental subjects participate in different experimental conditions. Moreover, it is a research design that uses each participant as his or her own control ; for example, the behavior of a participant before receiving treatment might be compared to his or her behavior after receiving treatment. Within-subjects design is allso known as Repeated-measures design.