TY - JOUR PY - 2015// TI - Homosexuality as a discrete class JO - Psychological science A1 - Norris, Alyssa L. A1 - Marcus, David K. A1 - Green, Bradley A. SP - 1843 EP - 1853 VL - 26 IS - 12 N2 - Previous research on the latent structure of sexual orientation has returned conflicting results, with some studies finding a dimensional structure (i.e., ranging quantitatively along a spectrum) and others a taxonic structure (i.e., categories of individuals with distinct orientations). The current study used a sample (N = 33,525) from the National Epidemiologic Survey on Alcohol and Related Conditions (NESARC). A series of taxometric analyses were conducted using three indicators of sexual orientation: identity, behavior, and attraction. These analyses, performed separately for women and men, revealed low-base-rate same-sex-oriented taxa for men (base rate = 3.0%) and women (base rate = 2.7%). Generally, taxon membership conferred an increased risk for psychiatric and substance-use disorders. Although taxa were present for men and women, women demonstrated greater sexual fluidity, such that any level of same-sex sexuality conferred taxon membership for men but not for women.
Language: en
LA - en SN - 0956-7976 UR - http://dx.doi.org/10.1177/0956797615598617 ID - ref1 ER -