means", depending on the hypnotic susceptibility of the subjects. Psychoanalysis Haldeman writes that psychoanalytic treatment of homosexuality is exemplified by the work of Irving Bieber et al. in Homosexuality: A Psychoanalytic Study of Male Homosexuals. They advocated long-term therapy aimed at resolving the unconscious childhood conflicts that they considered responsible for homosexuality. Haldeman notes that Bieber's methodology has been criticized because it relied upon a clinical sample, the description of the outcomes was based upon subjective therapist impression, and follow-up data were poorly presented. Bieber reported a 27% success rate from long-term therapy, but only 18% of the patients in whom Bieber considered the treatment successful had been exclusively homosexual to begin with, while 50% had been bisexual. In Haldeman's view, this makes even Bieber's unimpressive claims of success misleading. Haldeman discusses other psychoanalytic studies of attempts to change homosexuality. Curran and Parr's "Homosexuality: An analysis of 100 male cases", published in 1957, reported no significant increase in heterosexual behavior. Mayerson and Lief's "Psychotherapy of homosexuals: A follow-up study of nineteen cases", published in 1965, reported that half of its 19 subjects were exclusively heterosexual in behavior four and a half years after treatment, but its outcomes were based on patient self-report and had no external validation. In Haldeman's view, those participants in the study who reported change were bisexual at the outset, and its authors wrongly interpreted capacity for heterosexual sex as change of sexual orientation. Reparative therapy The term "reparative therapy" has been used as a synonym for conversion therapy generally, but according to Jack Drescher it properly refers to a specific kind of therapy associated with the psychologists Elizabeth Moberly and Joseph Nicolosi. The term reparative refers to Nicolosi's postulate that same-sex attraction is a person's unconscious attempt to "self-repair" feelings of inferiority. Marriage therapy Previous editions of the World Health Organization's ICD included "sexual relationship disorder", in which a person's sexual orientation or gender identity makes it difficult to form or maintain a relationship with a sexual partner. The belief that their sexual orientation has caused problems in their relationship may lead some people to turn to a marriage therapist for help to change their sexual orientation. Sexual orientation disorder was removed from the most recent ICD, ICD-11, after the Working Group on Sexual Disorders and Sexual Health determined that its inclusion was unjustified. Effects There is a scientific consensus that conversion therapy is ineffective at