Individuals who wish to practice marriage and family therapy or who wish to use the title "marriage and family therapist" must be licensed as a marriage and family therapist or hold a marriage and family therapist training license, pursuant to s. 457.04(5) and s. 457.11 (2) of the Wisconsin Statues. Marriage and family therapy means applying psychotherapeutic and marital or family systems theories and techniques in the assessment, marital or family diagnosis, prevention, treatment or resolution of a cognitive, affective, behavioral, nervous or mental disorder of an individual, couple or family. A license is required to practice marriage and family therapy or use the title "marriage and family therapist" except as indicated under s. 457.02 (3) or s. 457.04(5)(b), Wis. Stats.