Núñez D, Arias V B, Campos S
Faculty of Psychology, Universidad de Talca, Talca, Chile.
PLoS One. 2016 Dec 14;11(12):e0167982. doi: 10.1371/journal.pone.0167982. eCollection 2016.
The usage of rigorous analyses based on contemporary methods to enhance psychometric properties of screening questionnaires aimed to address psychotic-like experiences (PLE) is currently being encouraged. The Brief Self-Report Questionnaire for Screening Putative Pre-psychotic States (BQSPS) is a recently created tool addressing PLE beyond attenuated positive symptoms (APS). Its psychometric properties as a screening tool for first step assessment seems to be adequate, but further research is needed to evaluate certain validity aspects, particularly its dimensionality, internal structure, and psychometric properties in different populations. We assessed the reliability, construct validity, and criterion validity of BQSPS in two samples: 727 adolescents aged 13-18 years, and 245 young adults aged 18-33 years. We used exploratory structural equation modeling (ESEM), confirmatory factor analysis (CFA), and Structural Equation Modeling (SEM). The original four-factor structure was not replicated. The best fit in adolescents was obtained by a structure of three-correlated factors: social anxiety (SA), negative symptoms (NS), and positive symptoms (PS). This structure was confirmed in young adult subjects. The three-factor model reached a predictive capability with suicidality as external criterion. PLE are represented by a three-factor structure, which is highly stable between adolescent and young-adult samples. Although the BQSPS seems to be a valid tool for screening PLE, its psychometric properties should be improved to obtain a more accurate measurement.
目前鼓励使用基于当代方法的严格分析来增强旨在解决类精神病体验（PLE）的筛查问卷的心理测量特性。简短的疑似精神病前状态筛查自我报告问卷（BQSPS）是最近创建的一种工具，用于解决除减弱的阳性症状（APS）之外的PLE。作为第一步评估的筛查工具，其心理测量特性似乎是足够的，但需要进一步研究以评估某些效度方面，特别是其维度、内部结构以及在不同人群中的心理测量特性。我们在两个样本中评估了BQSPS的信度、结构效度和效标效度：727名13 - 18岁的青少年和245名18 - 33岁的年轻人。我们使用了探索性结构方程建模（ESEM）、验证性因素分析（CFA）和结构方程建模（SEM）。原始的四因素结构未得到重复。在青少年中，最佳拟合是通过一个三相关因素的结构获得的：社交焦虑（SA）、阴性症状（NS）和阳性症状（PS）。这种结构在年轻成人受试者中得到了证实。以自杀倾向作为外部标准，三因素模型具有预测能力。PLE由一个三因素结构表示，该结构在青少年和年轻成人样本之间高度稳定。尽管BQSPS似乎是筛查PLE的有效工具，但其心理测量特性应加以改进以获得更准确的测量。
