The macarthur competence assessment tool for treatment maccat t is the product of an 8 yr study of patients capacities to make treatment decisions it is a semi structured interview that assists clinicians who are conducting assessments of patients competence to consent to treatment macarthur competence assessment tool for treatment . The macarthur competence assessment tools maccat consist of the macarthur competence assessment tool for treatment maccat t the macarthur competence assessment tool for clinical research maccat cr and the macarthur competence assessment tool criminal adjudication maccat ca. Macarthur competence assessment tool for treatment forms 9781568870427 medicine health science books amazoncom. The macarthur competence tool for treatment maccat t adapted to brazilian portuguese santos et al 2017 was used to assess competence to consent to treatment grisso et al 1997 this scale . Called the macarthur competence assessment tool treatment maccat t this procedure is flexible enough to be applied by clinicians in day to day care of patients with varied disorders yet is sufficiently standardized to provide ratings of patients capacities of all four of the legally relevant abilities examined in the earlier research study