Crippa J A S, Sanches R F, Hallak J E C, Loureiro S R, Zuardi A W
Departamento de Neurologia, Psiquiatria e Psicologia Médica, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil.
Braz J Med Biol Res. 2002 Oct;35(10):1209-13. doi: 10.1590/s0100-879x2002001000014. Epub 2002 Oct 13.
The objective of the present study was to evaluate the factor structure of Bech's version of the Brief Psychiatric Rating Scale (BPRS), translated into Portuguese. The BPRS was administered to a heterogeneous group of psychiatric inpatients (N = 98) and outpatients (N = 62) in a University Hospital. Each patient was evaluated from one to eight times. The interval between consecutive interviews was one week for the inpatients and one month for the outpatients. The results were submitted to factorial analysis. The internal consistency of the total scale and of each factor was also estimated. Factorial analysis followed by normalized orthogonal rotation (Varimax) yielded four factors: Withdrawal-Retardation, Thinking Disorder, Anxious-Depression and Activation. Internal consistency measured by Cronbach's alpha coefficient ranged from 0.766 to 0.879. The data show that the factor structure of the present instrument is similar to that of the American version of the BPRS which contains 18 items, except for the absence of the fifth factor of the latter scale, Hostile-Suspiciousness.
本研究的目的是评估翻译成葡萄牙语的贝克简明精神病评定量表（BPRS）版本的因子结构。该BPRS应用于一家大学医院的各类精神科住院患者（N = 98）和门诊患者（N = 62）。每位患者接受了1至8次评估。住院患者连续访谈的间隔时间为1周，门诊患者为1个月。研究结果进行了因子分析。同时还估计了总量表及各因子的内部一致性。因子分析后进行归一化正交旋转（方差最大化），得出四个因子：退缩-迟缓、思维紊乱、焦虑-抑郁和激活。用克朗巴赫α系数衡量的内部一致性范围为0.766至0.879。数据表明，本工具的因子结构与包含18个条目的美国版BPRS相似，只是后者量表的第五个因子“敌对-猜疑”不存在。
