 In 2003, Lorene Gottschalk, a self-described radical feminist suggested there may be a reporting bias linking gender nonconformity to homosexuality.Researchers have explored the possibility of bias by comparing childhood home videos with self-reports of gender nonconformity, finding that the presence of gender nonconformity was highly consistent with self-reporting, emerged early and carried on into adulthood.Children with gender dysphoria, also known as gender identity disorder (GID), exhibit the typical gender-nonconforming patterns of behaviors, such as a preference for toys, playmates, clothing, and play-styles that are typically associated with the opposite sex.