Respuesta :
I think your question is missing options, but I can give an example for a
therapy that is not known to be supported by scientific research, but
which is still often used because it was not disproved: Sigmund Freud's
psychoanalysis. In Psychoanalysis people try to understand their
unconscious thoughts to help them understand why and how they feel.
Psychoanalysis is a form of therapy is most likely to be criticized for offering interpretations that cannot be proven or disproven.