| Michael Ross, William Walters, "Transsexualism and Sex Reassignment", Oxford University Press, 1986 p55 |
| p55:  | Walinder et al. found that psychosis, mental retardation and unstable personality were definite contra-indications for sex reassignment. MMPI provides an extensive personality profile and indicates the degree of stability or instability in the organization of the subjects personality. |
| p57:  | The A.S.R.S. provides evidence that male-to-female transsexuals adopt a unidimensional stereotyped sex-role identity rather than an androgynous (combination of male and female) one. |
| p54:  | The importance of psychological testing of transsexuals lies in the need to establish quickly and objectively those psychological factors which correlate with either positive or negative likely outcomes of sex reassignment. When psychiatric assessment and test results are in agreement, the decision to commence hormone therapy is made easier. When there is no such agreement, further psychiatric investigation is indicated before recommending that the patient commence hormone therapy. |
| Linda Friar, George Rekers, Alexander Rosen, "Theoretical and Diagnostic Issues in Child Gender Disturbances", The Journal of Sex Research, 13:2 May 1977, pp. 89-103 |
| | It is possible that the unitary M-F dimension is an artificial construction of certain personality inventories, and that, in fact, two independent dimensions exist - one dimension raging from minimal masculinity to pronounced masculinity and another potentially orthogonal dimension ranging from minimal femininity to pronounced femininity. In this case it would be theoretically possible, perhaps depending on environmental conditions and biological predispositions, for an individual to manifest very few sex-typed personality characteristics and to be low in both dimensions, or for another individual to be high in the expression of both masculine and feminine personality characteristics. |
| Thomas Lindgren, Ira Pauly, "A Body Image Scale for Evaluating Transsexuals", Archives of Sexual Behavior, 4:6 1975, p. 639 |
| | These body image scales are intended for use as an additional tool in the evaluation of the transsexual's request for sex reassignment. The nontranssexual, the patient with excessive polysurgical desires, and the patient who has unreasonable expectations of surgery may all be better identified. |