Quantitative Psychology Unit, Faculty of Psychology, University of Barcelona, Barcelona, Spain.
Group on Measurement Invariance and Analysis of Change (GEIMAC), Institute of Neurosciences (NeuroUB), University of Barcelona, Barcelona, Spain.
Int J Methods Psychiatr Res. 2018 Sep;27(3):e1598. doi: 10.1002/mpr.1598. Epub 2017 Nov 7.
The Screen for Cognitive Impairment in Psychiatry is a simple, fast, and easy to administer scale that has been validated in clinical and community samples. The aim of this study was to propose a polytomous scoring system for the Screen for Cognitive Impairment in Psychiatry and to demonstrate its functioning, thus providing new and complementary information regarding the utility and precision of this screening tool. Three hundred seventy-six Spanish patients diagnosed with schizophrenia spectrum disorder were evaluated. A polytomous scoring system was generated and analyzed by means of the partial credit model. Category assessment revealed optimal functioning after collapsing the 7-category system to 1 with either 5 or 4 categories, depending on the item. The proposed polytomous scoring system shows good psychometric properties and an adequate fit to the partial credit model. These results provide further confirmation of the test's utility in clinical settings and of its suitability for detecting cognitive impairment.
《精神科认知障碍筛查表》是一种简单、快速、易于管理的量表，已在临床和社区样本中得到验证。本研究旨在为《精神科认知障碍筛查表》提出一种多项计分系统，并展示其功能，从而为该筛查工具的实用性和精确性提供新的、补充性的信息。我们评估了 376 名被诊断为精神分裂症谱系障碍的西班牙患者。通过部分信用模型生成并分析了多项计分系统。通过将 7 项系统简化为 1 项或 4 项，取决于项目，类别评估显示出最佳功能。提出的多项计分系统具有良好的心理计量学特性和对部分信用模型的适当拟合。这些结果进一步证实了该测试在临床环境中的实用性，以及其检测认知障碍的适用性。
