Symptom dimensions of the psychotic symptom rating scales in psychosis: a multisite study.
Symptom dimensions of the psychotic symptom rating scales in psychosis: a multisite study.
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DOI：
10.1093/schbul/sbu014
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发表时间：
2014-07
影响因子：
6.6
通讯作者：
Erickson D
中科院分区：
文献类型：
--
作者：
Woodward TS;Jung K;Hwang H;Yin J;Taylor L;Menon M;Peters E;Kuipers E;Waters F;Lecomte T;Sommer IE;Daalman K;van Lutterveld R;Hubl D;Kindler J;Homan P;Badcock JC;Chhabra S;Cella M;Keedy S;Allen P;Mechelli A;Preti A;Siddi S;Erickson D
精神病症状评定量表（PSYRATS）是一种旨在量化妄想和幻觉严重程度的工具，通常用于精神病和精神分裂症患者的研究和临床环境。它由幻听（AHS）和妄想分量表（DS）组成，但这些分量表不一定反映导致量表项目簇之间相互关联的心理结构。在某些临床和研究背景下，这些结构的识别是很重要的，因为项目聚类可能是由潜在的病因过程引起的。以前试图确定这些结构产生了相互矛盾的结果。在这项研究中，我们汇编了来自7个国家12个地点的PSYRATS数据，包括711名AHS参与者和520名DS参与者。我们比较了以前提出的和新的模型的基础结构，使用结构方程模型。对于AHS，一种新的四维模型提供了最佳拟合，其中潜在变量标记为痛苦（负面内容，痛苦和控制），频率（频率，持续时间和中断），归因（声音的位置和来源）和响度（仅响度项）。对于DS，确认了二维解，其中潜在变量标记为苦恼（量/强度）和频率（专注，信念和破坏）。内AHS和内DS维度的相关性高于分量表之间的相关性，但AHS和DS苦恼维度除外，其相关性接近尺度内相关性的范围。为将这些基本结构整合到PSYRATS的研究和临床应用中提供了建议。
The Psychotic Symptom Rating Scales (PSYRATS) is an instrument designed to quantify the severity of delusions and hallucinations and is typically used in research studies and clinical settings focusing on people with psychosis and schizophrenia. It is comprised of the auditory hallucinations (AHS) and delusions subscales (DS), but these subscales do not necessarily reflect the psychological constructs causing intercorrelation between clusters of scale items. Identification of these constructs is important in some clinical and research contexts because item clustering may be caused by underlying etiological processes of interest. Previous attempts to identify these constructs have produced conflicting results. In this study, we compiled PSYRATS data from 12 sites in 7 countries, comprising 711 participants for AHS and 520 for DS. We compared previously proposed and novel models of underlying constructs using structural equation modeling. For the AHS, a novel 4-dimensional model provided the best fit, with latent variables labeled Distress (negative content, distress, and control), Frequency (frequency, duration, and disruption), Attribution (location and origin of voices), and Loudness (loudness item only). For the DS, a 2-dimensional solution was confirmed, with latent variables labeled Distress (amount/intensity) and Frequency (preoccupation, conviction, and disruption). The within-AHS and within-DS dimension intercorrelations were higher than those between subscales, with the exception of the AHS and DS Distress dimensions, which produced a correlation that approached the range of the within-scale correlations. Recommendations are provided for integrating these underlying constructs into research and clinical applications of the PSYRATS.
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影响因子：
6.6
作者：
Johns LC;Kompus K;Connell M;Humpston C;Lincoln TM;Longden E;Preti A;Alderson-Day B;Badcock JC;Cella M;Fernyhough C;McCarthy-Jones S;Peters E;Raballo A;Scott J;Siddi S;Sommer IE;Larøi F
通讯作者：
Larøi F
影响因子：
6.6
作者：
Allen, Paul;Modinos, Gemma;Hoffman, Ralph
通讯作者：
Hoffman, Ralph
影响因子：
5.3
作者：
Daalman, Kirstin;Boks, Marco P. M.;Sommer, Iris E. C.
通讯作者：
Sommer, Iris E. C.
影响因子：
6.9
作者：
Daalman, K.;Sommer, I. E. C.;Peters, E. R.
通讯作者：
Peters, E. R.
影响因子：
10.5
作者：
Chadwick, P;Lees, S;Birchwood, M
通讯作者：
Birchwood, M