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The Sex Orientation Scale (SOS) was Harry Benjamin's attempt to classify and understand various forms and subtypes of transvestism and transsexualism in biological males, published in 1966.〔Benjamin, Harry (1966). ''The Transsexual Phenomenon.'' The Julian Press, ISBN 9780446824262〕 It was a seven-point scale (with three types of transvestism, three types of transsexualism, and one category for typical males); it was analogous to the Kinsey Scale as it relates to sexual orientation, which also had seven categories.〔Pomeroy, Wardell (1975). The diagnosis and treatment of transvestites and transsexuals. ''Journal of Sex & Marital Therapy'' Volume 1, Issue 3, 1975 doi:10.1080/00926237508405291〕 Much like Kinsey's understanding of sexual orientation, Benjamin understood the nature of gender identity and gender expression not as a discrete scale, but as a spectrum, a continuum with many variations. The Benjamin scale provides a rational and clinically useful way to understand different forms of transsexualism and to distinguish between how people commonly identify in relation to readiness for surgical and/or hormonal treatment changes. ==Sex Orientation Scale (S.O.S.)== Sex and Gender Role Disorientation and Indecision (Males) Benjamin noted, "It must be emphasized again that the remaining six types are not and never can be sharply separated."〔 Benjamin added a caveat: "It has been the intention here to point out the possibility of several conceptions and classifications of the transvestitic and the transsexual phenomenon. Future studies and observations may decide which one is likely to come closest to the truth and in this way a possible understanding of the etiology may be gained."〔 Benjamin's Scale references and uses Alfred Kinsey's sexual orientation scale to distinguish between "true transsexualism" and "transvestism". But the strict relationship between gender identity (Benjamin's Scale) and sexual orientation (Kinsey's Scale) was just a result of the researcher's biases, not his scientific findings. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Benjamin scale」の詳細全文を読む スポンサード リンク
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