SPHERICITY By N., Sam M.S. - 6 An assumption in data analysis that when a person is measured on more than one occasion the answers will be the same. Read also the REPEATED MEASURES DESIGN for understanding. SPHERICITY: "Sphericity is applied to data analysis." Related Psychology Terms Discrimination and Mental Illness in the LGBT Population The Anatomy of Research and the Scientific Method Evaluation of a Quantitative Study APRAXIA (literally, “inability to act or do”) Evaluation of a Qualitative Study GEISSER-GREENHOUSE CORRECTION A Comparison of Maternal and Paternal Filicide Comparison of Assessment Tools SCHOLASTIC APTITUDE TESTS ENGINEERING PSYCHOLOGY (Human Engineering) Cite this page: N., Sam M.S., "SPHERICITY," in PsychologyDictionary.org, April 13, 2013, https://psychologydictionary.org/sphericity/ (accessed December 5, 2021).