The Schizophrenia Cognition Rating Scale (SCoRS), an interview-based assessment of cognition, has proved to be a valid measure of cognitive performance in patients with schizophrenia.
Vita A, Deste G, Barlati S, De Peri L, Giambra A, Poli R, Keefe RSE, Sacchetti E. Interview-based assessment of cognition in schizophrenia: Applicability of the Schizophrenia Cognition Rating Scale (SCoRS) in different phases of illness and settings of care. Schizophrenia Research, 2013; 146(1-3): 217-223.