Tsatali Marianna, Angelidou Ioanna Antigoni, Tsolaki Magda, Teichmann Birgit
Greek Association of Alzheimer's Disease and Related Disorders (GAADRD), Thessaloniki, Greece.
Network Aging Research, Heidelberg University, Heidelberg, Germany.
J Alzheimers Dis Rep. 2023 Dec 29;7(1):1377-1393. doi: 10.3233/ADR-230161. eCollection 2023.
Measuring dementia knowledge can be a valuable tool for assessing the effectiveness of dementia awareness activities, identifying the potential benefits of dementia training programs, and breaking down common myths and stereotypes about dementia.
To compare the psychometric properties of three widely used dementia knowledge tools, the Dementia Knowledge Assessment Tool 2 (DKAT2-G), the Dementia Knowledge Assessment Scale (DKAS-G), and the Knowledge in Dementia Scale (KIDE-G) in the Greek adult population.
A convenience sample of 252 participants from the general population completed the survey online. Statistical analyses included Cronbach's internal reliability, retest reliability, factor analysis, concurrent and construct validity, and floor and ceiling effects.
The DKAS-G had the most appropriate reliability levels (Cronbach's alpha = 0.845; retest reliability = 0.921), whereas the DKAT2-G had satisfactory indexes (Cronbach's = 0.760; retest reliability = 0.630). The KIDE-G showed unsatisfactory reliability (Cronbach's = 0.419; retest reliability = 0.619). Construct validity was confirmed for all questionnaires, showing that all of them detected participants with pre-existing knowledge of dementia. Confirmatory factor analysis revealed a four-factor model for the DKAS-G and proposed the removal of 5 items. Floor and ceiling effects were found for the DKAT2-G and the KIDE-G, mainly among those who had previously participated in dementia training.
The DKAS-G was found to have the highest levels of reliability and validity. The results prove that the DKAS-G meets the requirements for measuring dementia knowledge and evaluating dementia training programs in health professionals, caregivers, and the general population.
测量痴呆症知识可以成为评估痴呆症认知活动有效性、确定痴呆症培训项目潜在益处以及打破有关痴呆症常见误解和刻板印象的宝贵工具。
比较三种广泛使用的痴呆症知识工具——痴呆症知识评估工具2（DKAT2 - G）、痴呆症知识评估量表（DKAS - G）和痴呆症知识量表（KIDE - G）在希腊成年人群中的心理测量特性。
从普通人群中选取252名参与者组成便利样本，通过在线方式完成调查。统计分析包括克朗巴哈内部信度、重测信度、因子分析、同时效度和结构效度以及地板效应和天花板效应。
DKAS - G具有最合适的信度水平（克朗巴哈α系数 = 0.845；重测信度 = 0.921），而DKAT2 - G具有令人满意的指标（克朗巴哈系数 = 0.760；重测信度 = 0.630）。KIDE - G显示出不满意的信度（克朗巴哈系数 = 0.419；重测信度 = 0.619）。所有问卷的结构效度均得到证实，表明它们都能检测出已有痴呆症知识的参与者。验证性因子分析揭示了DKAS - G的四因子模型，并建议删除5个项目。在DKAT2 - G和KIDE - G中发现了地板效应和天花板效应，主要出现在之前参加过痴呆症培训的人群中。
发现DKAS - G具有最高水平的信度和效度。结果证明，DKAS - G符合测量痴呆症知识以及评估卫生专业人员、护理人员和普通人群中痴呆症培训项目的要求。
