CONSTRUCT-VALIDATION AND THE RASCH MODEL - FUNCTIONAL ABILITY OF HEALTHY ELDERLY PEOPLE
CONSTRUCT-VALIDATION AND THE RASCH MODEL - FUNCTIONAL ABILITY OF HEALTHY ELDERLY PEOPLE
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DOI：
10.1177/140349489302100403
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发表时间：
1993-12-01
期刊：
影响因子：
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通讯作者：
SCHULTZLARSEN, K
中科院分区：
文献类型：
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作者：
AVLUND, K;KREINER, S;SCHULTZLARSEN, K
本研究的目的是测试的结构效度的功能能力的措施，开发的意图实现高度的变异性和能力，一组健康的老年人之间的歧视。数据收集自丹麦哥本哈根郡的734名70岁老人。功能能力的测量与传统的日常生活活动和专门为健康的老年人开发的分类系统。结构效度采用Rasch模型进行项目分析，通过评估项目在不同条件下的同质性来确定内部效度。研究结果表明，功能能力的测量是一个6个不同维度的组合，分为3种类型：移动功能，下肢功能和上肢功能。关于这三种类型的功能能力下降可能会出现疲劳或速度降低。
The purpose of this study was to test the construct validity of a measure of functional ability, developed with the intention of achieving a high degree of variability and capacity for discriminating among a group of healthy elderly people. Data were collected from 734 70-year-old people in Denmark in the county of Copenhagen. Functional ability was measured with the traditional activities of daily living and with a classification system developed specially for healthy elderly people. Construct validity was tested by the Rasch model for item analysis, addressing specifically the internal validity by assessing the homogeneity of items under different conditions. The results show that the proposed measure of functional ability is a combination of six different dimensions, divided into 3 types: mobility function, lower limb function and upper limb function. With regard to these three types decreased functional ability can appear by either tiredness or reduced speed.