FUNCTIONAL INVARIANT By N., Sam M.S. - 217 Found in Jean Piaget's theory. This term applies to any of the processes of organisation and adaptation that characterise the biological systems and operate throughout the life span. See accommodation. FUNCTIONAL INVARIANT: "A functional invariant is one that we have all our life." Related Psychology Terms Piaget’s Theory of Cognitive Development Identifying Relevant Theories and Models ADOLESCENCE (Theories) JUNG, CARL GUSTAV (1875-1961) A Comparison of Maternal and Paternal Filicide Selecting a Diagnosis EMOTION (Theories) ASSIMILATION CHILD PSYCHIATRY CANNON, WALTER BRADFORD (1871-1945) Cite this page: N., Sam M.S., "FUNCTIONAL INVARIANT," in PsychologyDictionary.org, May 11, 2013, https://psychologydictionary.org/functional-invariant/ (accessed August 10, 2022).