Keefe R S, Harvey P D, Lenzenweger M F, Davidson M, Apter S H, Schmeidler J, Mohs R C, Davis K L
Department of Psychiatry, Mount Sinai School of Medicine, New York, NY.
Psychiatry Res. 1992 Nov;44(2):153-65. doi: 10.1016/0165-1781(92)90049-9.
The factor structure of the Scale for the Assessment of Negative Symptoms (SANS) was examined in a confirmatory factor analysis that used the LISREL procedure. Four models of negative symptom factors were tested in 130 hospitalized schizophrenic patients. A three-factor model of diminished expression, social dysfunction, and disorganization generated by the authors yielded a superior fit to the data relative to the two-factor model of Liddle (1987b) and a unifactorial severity model. A four-factor model based on the original subscale formulation of the SANS failed to fit the data.
采用LISREL程序进行验证性因素分析，对阴性症状评定量表（SANS）的因素结构进行了研究。在130例住院精神分裂症患者中测试了四种阴性症状因素模型。作者提出的情感淡漠、社会功能障碍和紊乱的三因素模型，相对于Liddle（1987b）的双因素模型和单因素严重程度模型，对数据的拟合度更高。基于SANS原始分量表形式的四因素模型未能拟合数据。
