Dichter Martin Nikolaus, Halek Margareta, Dortmann Olga, Meyer Gabriele, Bartholomeyczik Sabine
Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Standort Witten, Germany ; Department für Pflegewissenschaft, Universität Witten/Herdecke, Witten, Germany.
Psychosoc Med. 2013 Jul 26;10:Doc06. doi: 10.3205/psm000096. Print 2013.
QUALIDEM is a standardized dementia-specific quality of life (Qol) measurement, which was developed and validated in the Netherlands. A German version has been available since 2008. This study protocol describes the design and methodology for the quality of life of people with dementia (Qol-Dem) project.
This project aims to evaluate the reliability and validity of the German version of the QUALIDEM.
Due to the lack of both a universal definition of Qol and of standards to verify the validity of Qol measurements, this study is divided into three phases. The aim of the first theoretical phase is the development of a dementia-specific Qol model as a result of a meta-synthesis of qualitative studies. The second empirical phase consists of the three following steps: (a) an investigation of the scalability and internal consistency of the measure, (b) an evaluation of the interrater and intrarater reliability, and (c) an extensive evaluation of the validity of the QUALIDEM. The resulting Qol model (phase 1) will be used for the selection of appropriate comparators for validity testing. In the third phase, the QUALIDEM will be adapted, if necessary, based on the knowledge generated in the first two phases.
The findings of the Qol-Dem project should deliver an accurate assessment of the psychometric properties of the German version of the QUALIDEM. The results will contribute to the further development of the instrument. Furthermore, the results will contribute to the theoretical development of the concept of Qol among people with dementia.
QUALIDEM是一种针对痴呆症的标准化生活质量（QoL）测量工具，在荷兰开发并经过验证。自2008年起有德语版本。本研究方案描述了痴呆症患者生活质量（Qol-Dem）项目的设计和方法。
本项目旨在评估德语版QUALIDEM的信度和效度。
由于缺乏生活质量的通用定义以及验证生活质量测量效度的标准，本研究分为三个阶段。第一个理论阶段的目的是通过对定性研究的元综合，开发一个针对痴呆症的生活质量模型。第二个实证阶段包括以下三个步骤：（a）调查该测量工具的可扩展性和内部一致性，（b）评估评分者间信度和评分者内信度，（c）对QUALIDEM的效度进行广泛评估。所得的生活质量模型（第一阶段）将用于选择合适的对照物进行效度测试。在第三阶段，如有必要，将根据前两个阶段获得的知识对QUALIDEM进行调整。
Qol-Dem项目的研究结果应能准确评估德语版QUALIDEM的心理测量特性。研究结果将有助于该工具的进一步开发。此外，研究结果将有助于痴呆症患者生活质量概念的理论发展。
