Factor-structure of the Italian version of the Scale Of Prodromal Symptoms (SOPS): a comparison with the English version
Factor-structure of the Italian version of the Scale Of Prodromal Symptoms (SOPS): a comparison with the English version
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DOI：
10.1017/s2045796011000114
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发表时间：
2011-03-01
影响因子：
8.1
通讯作者：
Tatarelli, R.
中科院分区：
文献类型：
--
作者：
Comparelli, A.;Savoja, V.;Tatarelli, R.
目标。由19个条目组成的前驱症状量表(SOPS)及其半结构化访谈--前驱症状结构化访谈(SIPS)--已经被开发出来，以评估精神病的前驱症状。我们评估了该工具的意大利版的心理测量学特性。我们收集了在罗马一大片地区首次寻求精神帮助的128人的社会人口学和临床数据，他们要么是社区机构的门诊患者，要么是两家综合医院精神科病房的住院患者。参与者接受了意大利版的SOPS和24个条目的简明精神病评定量表(BPRS)。数据分析采用皮尔逊相关分析和析因分析。英文版和意大利版的心理测量学特征和因素结构相似。最适合的模型是三因素模型，解释了总方差的90%，大致对应于积极、消极和一般维度，组织混乱蔓延到其他维度。与BPR比较，意大利版SOPS具有结构效度和趋同效度。意大利文版SOPS的因素结构与英文版和西班牙文版的相似，因为出现的因素是相同的(积极、消极和一般症状)。该量表可用于评估早期干预服务中的高危人群。
Aims. The 19-item 'Scale Of Prodromal Symptoms' (SOPS) and its semi-structured interview, the Structured Interview for Prodromal Symptoms (SIPS), have been developed to assess prodromes of psychosis. We assessed psychometric properties of the Italian version of the instrument.Methods. We collected socio-demographic and clinical data of 128 people seeking first-time psychiatric help in a large Roman area, either as outpatients at community facilities or as inpatients in psychiatric wards of two general hospitals. Participants were administered the Italian version of the SOPS and the 24-item Brief Psychiatric Rating Scale (BPRS). Data were analysed through Pearson's correlation and factorial analysis.Results. The English and Italian SOPS versions showed similar psychometric properties and factorial structure. The best-fit model was trifactorial, explaining 90% of total variance, and roughly corresponding to the positive, negative, and general dimensions, with disorganisation spreading over the other dimensions. Compared with the BPRS, the Italian version of the SOPS showed construct validity and convergent validity.Conclusions. The factor-structure of the Italian version of the SOPS is similar to those of the English and Spanish versions, in that the factors emerged are the same (positive, negative, and general symptoms). The scale could be used to assess at-risk people in early intervention services.