Fritz Klein

Who was Fritz Klein?

Fred "Fritz" Klein was an American psychiatrist and sex researcher who studied bisexuals and their relationships. He helped begin a foundation that promoted bisexual culture. He was an author and editor, as well as the developer of the Klein Sexual Orientation Grid a scale that measures an individual's sexual orientation. Klein believed that sexual orientation changed over the course of a lifetime and that researches underestimated the number of men that had sexual interactions with both sexes. He was a proponent of using Neurolinguistic programming to change behavior.