However, the question remains of how to get reliable data. Gender identity Gender identity is the subjective sense of one's own sex. Most people, including homosexuals, identify as male or female in accordance with their anatomical sex. Transsexuals are people who believe that they really belong to the sex opposite to that indicated by their genitalia. Transsexuals do not exhibit any evidence of generalised psychological disorder.
Some people are intermediate between transsexual and homosexual.
Transvestites are people who cross-dress, but have normal gender identity. Evidence from transsexuals and from people with developmental abnormalities suggest that gender identity is not solely determined by social factors and upbringing.