CONCORDANCE RATE By N., Sam M.S. - 81 the amount of twin pairs or other genetically related persons who show a certain feature or illness. CONCORDANCE RATE: "The concordance rate of PMDD affecting women in the family was astounding." Related Psychology Terms PMDD: Can It Be Cured? Dissociative Identity Disorder A Comparison of Maternal and Paternal Filicide FAMILY CARE Cultural Norms & Values in the African-American Population CONCORDANCE IN TWINS CHILD PSYCHIATRY HOMOSEXUALITY (ETIOLOGY AND THERAPY) HOMOSEXUALITY (Female) Selecting a Diagnosis Cite this page: N., Sam M.S., "CONCORDANCE RATE," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/concordance-rate/ (accessed August 9, 2022).