Which of the following statement regarding dual sex therapy is true?
The theoretical basis of dual-sex therapy is the concept of the marital unit or dyad as the object of therapy. In dual-sex therapy, treatment is based on a concept that the couple must be treated when a dysfunctional person is in a relationship. Because both are involved in a sexually distressing situation, both must paicipate in the therapy program. Dual sex therapy aka "Master and Johnson therapy".