Factor analysis of the Scale of Prodromal Symptoms: data from the Early Detection and Intervention for the Prevention of Psychosis Program
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- 作者：Ivy F. Tso ; Stephan F. Taylor ; Tyler B. Grove ; Tara Niendam ; Steven Adelsheim ; Andrea Auther ; Barbara Cornblatt ; Cameron S. Carter ; Roderick Calkins ; J. Daniel Ragland ; Tamara Sale and William R. McFarlane
- 刊名：Early Intervention in Psychiatry
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：11
- 期：1
- 页码：14-22
- 全文大小：539K
- ISSN：1751-7893
文摘
The Scale of Prodromal Symptoms (SOPS) was developed to identify individuals experiencing early signs of psychosis, a critical first step towards early intervention. Preliminary dimension reduction analyses suggested that psychosis-risk symptoms may deviate from the traditional symptom structure of schizophrenia, but findings have been inconsistent. This study investigated the phenomenology of psychosis risk symptoms in a large sample from a multi-site, national study using rigorous factor analysis procedure.