The Brief Psychiatric Rating Scale: Schizophrenia, Reliability and Validity Studies

Factors Influencing Occupational Engagement in Day Centers for People with Psychiatric Disabilities

“…For the analysis, the items were grouped into subscales of positive, negative and depressive symptoms and general psychopathology. BPRS has been shown to be reliable and valid (Andersen et al, 1986), especially when a structured interview guide (Crippa, Sanches, Hallak, Loureiro, & Zuardi, 2001) and interviewer training is used, as in the present study. A test of inter-rater reliability calculated on the present sample resulted in coefficients of 0.80 or more and Cronbach's alpha was 0.74.…”

Factors influencing subjective perceptions of everyday occupations: Comparing day centre attendees with non-attendees

“…The items include symptoms such as disorganization, disorientation and depression and may be divided into sub-scales of positive, negative, and depressive symptoms and general psychopathology. Studies have shown that the BPRS has good inter-observer and intra-observer reliability (30,31) especially when the interviewer acquires special training (32) and uses a structured interview guide when conducting the interview (33). These precautions were taken in the present study and a test of inter-rater reliability resulted in alpha coefficients of 0.80 or more.…”

Does substance use disorder affect clinical expression in first-hospitalization patients with schizophrenia? Analysis of a prospective cohort

“…Each item is rated on a 7-point scale ranging from "not present" to "very severe". BPRS is widely used for evaluate psychiatric symptoms specially in schizophrenia research and its reliability and validity has been demonstrated repeatedly (Hedlund and Wieweg, 1980;Andersen et al, 1989;Mortimer, 2007) also in dual diagnosis patients (Lykke et al, 2008). In this study it was used to assess the severity of each psychopathological dimension at three stages of observation (T0, T1 and T2).…”