The next most prolific person to run with that "new field of study" was John Money, who ended up completely wrecking the Rheimer family until two committed suicide, forced twins to pretend to copulate until they cried and didn't want to go to him anymore, and convinced parents to raise their son as a daughter, despite Rheimer saying that he always knew, from a young age. When the parents kept him from seeing John Money, Dr. Money continued to falsify research that things were working out great.However, both Freud and Kinsey opened up a new field of study and allowed for more competent scientific minds to learn more factual information and take a better scientific approach to psychology/psychoanalysis in Freud's case or sexual behavior in Kinsey's case.
But I do suppose things got somewhat better after that with Masters and Johnsons, though I'm just going by wikipedia on them. Supposedly they had 80% succes rate in dealing with sexual dysfunction, through simply a short series of talk therapy (previously people would go into years of ineffectual therapy). They also apparently had a 71.6% success rate with gay conversion, but that was controversial even then and the press wrote only bad things about it.
Any specific researchers you think I should look into?