CA Tripp - nonfiction - 1975 - p. 205  

The Homosexual Matrix is a nonfiction book by psychologist Clarence Arthur Tripp that explores homosexuality from biological, sociological, and psychological perspectives. It took a progressive view, denouncing commonly held beliefs that homosexuality stemmed from hormone imbalances, overweening mothers, or other psychopathologies, suggesting instead that the vast majority of the population was heterosexual due to social norms and conditioning rather than any sort of natural order or biological imperative. In doing so, it critiqued Sigmund Freud's widely held notion that homosexuality typically entailed some kind of developmental stunting or arrest in contrast to the full maturation of heterosexuality.

Tripp spent eight years working with groundbreaking sex researcher Alfred Kinsey at the Kinsey Institute for Research in Sex, Gender, and Reproduction. Tripp gained some notoriety for advancing the theory that Abraham Lincoln had engaged in same-sex relationships.

Key elements: homosexuality