Complex sentence: Schema Therapy is often used when patients fail to respond or improve after having been through other such therapies, for example, DBT therapy, yet it is can also be used to treat major depressive disorders, and other psychological issues of individuals and couples.
Split into simpler sentences: Schema Therapy is often used when patients fail to respond or improve after having been through other such therapies, for example, DBT therapy. Yet it is can also be used to treat major depressive disorders, and other psychological issues of individuals and couples.