Fonseca-Pedrero Eduardo, Paino Mercedes, Ortuño-Sierra Javier, Lemos-Giráldez Serafín, Muñiz José
Department of Educational Sciences, University of La Rioja, C/Luis de Ulloa S/N, Edificio Vives, Logroño, 26002 La Rioja, Spain ; Center for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain.
ScientificWorldJournal. 2013 Nov 11;2013:625247. doi: 10.1155/2013/625247. eCollection 2013.
Wisconsin Schizotypy Scales are one of the most used measuring instruments for the assessment of psychometric risk for psychosis. The main goal of the present study was to analyze the internal structure of the Wisconsin Schizotypy Scales-Brief (WSS-B) forms and the reliability of the scores in a large sample of college students. The final sample was comprised by a total of 1349 students, 288 males, with a mean age of 20.48 years (SD = 2.58). The results indicated that the WSS-B scores presented adequate psychometric properties. Cronbach's alfa coefficient for total scores in WSS-B ranged from 0.86 to 0.93. Analysis of the internal structure of the WSS-B, through confirmatory factor analysis and exploratory structural equation modeling, yielded a four factor solution (Magical Ideation, Perceptual Aberration, Social Anhedonia, and Physical Anhedonia) as the most adequate. Statistically significant differences in mean scores of WSS-B by sex were found. These results provided new validity evidence of the WSS-B scores in an independent sample of nonclinical young adults. The WSS-B seems to be useful, brief, and easy to administrate for the screening of extended psychosis phenotype in the general population.
威斯康星分裂型特质量表是评估精神病心理测量风险最常用的测量工具之一。本研究的主要目的是分析威斯康星分裂型特质量表简版（WSS-B）各形式的内部结构以及在大量大学生样本中分数的可靠性。最终样本共有1349名学生，其中288名男性，平均年龄为20.48岁（标准差=2.58）。结果表明，WSS-B分数呈现出足够的心理测量学特性。WSS-B总分的克朗巴哈α系数在0.86至0.93之间。通过验证性因素分析和探索性结构方程模型对WSS-B的内部结构进行分析，得出四因素解决方案（神奇观念、感知偏差、社交快感缺失和躯体快感缺失）最为合适。发现WSS-B的平均分数在性别上存在统计学显著差异。这些结果为非临床年轻成年人独立样本中WSS-B分数提供了新的效度证据。WSS-B似乎对于在普通人群中筛查扩展型精神病表型是有用的、简短且易于实施的。
