University of Kassel, Department of Psychology, Kassel, Germany.
Justus-Liebig University Giessen, Biological Psychology and Individual Differences, Giessen, Germany; THM University of Applied Sciences, Faculty of Life Science Engineering, Giessen, Germany.
Psychiatry Res. 2018 Sep;267:289-295. doi: 10.1016/j.psychres.2018.06.009. Epub 2018 Jun 15.
Schizotypy is a personality-framework currently considered a comprehensive and useful construct in schizophrenia research and becoming ever more accepted within psychiatry. Thus, it is crucial to obtain a unifying and generally accepted means of its measuring. The three most commonly used psychometric schizotypy inventories, the Wisconsin Schizotypy Scales, Schizotypal Personality Questionnaire and Oxford-Liverpool Inventory of Feelings and Experiences were, however, built upon different theoretical schizotypy models, wherefore comparing results from studies that have used different inventories is difficult and sometimes questionable. Therefore, an analysis of all three inventories was conducted within the same sample of 327 healthy participants to illustrate the similarities and differences in factor structures. Results showed that findings are likely dependent on the used assessment instrument. A following item-level factor analysis was conducted to investigate the shared structure of all three inventories, in order to illustrate a framework interpretable as "common ground" between measures. This adjusted four-factor structure may be used to better aid comparisons between schizotypy-studies having used different inventories. At least, our findings illustrate the necessity of viewing individual results before the background of the theoretical framework of the respective measurement tool.
精神分裂症特质是一种人格框架，目前被认为是精神分裂症研究中全面且有用的建构，并在精神病学领域得到越来越多的认可。因此，获得一个统一且普遍接受的测量方法至关重要。然而，三个最常用的心理精神分裂症特质量表，即威斯康星精神分裂症特质量表、精神分裂症人格问卷和牛津-利物浦感觉和体验量表，是基于不同的理论精神分裂症模型构建的，因此，比较使用不同量表的研究结果既困难又有时值得怀疑。因此，在同一 327 名健康参与者的样本中对所有三个量表进行了分析，以说明因子结构的相似性和差异性。结果表明，研究结果可能取决于所使用的评估工具。随后进行了项目水平的因子分析，以研究所有三个量表的共同结构，以便说明一个可作为“共同点”的测量框架。这个调整后的四因素结构可以用来更好地帮助比较使用不同量表的精神分裂症特质研究。至少，我们的研究结果说明了在各自测量工具的理论框架背景下，在查看个体结果之前的必要性。
