Development of five grading standards and visual assessment tools for the elderly disability with dementia and its reliability and validity testing
Objective To establish Chinese grading standards for elderly disability and dementia,in accordance with the International Classification of Functioning,Disability and Health(ICF)items,and to develop visual assessment tools that can be easily understood by patients,family members,and health workers.The aim is to verify the reliability and validity of these tools.Methods In this study,we established five categories of elderly disability classification,along with corresponding ICF items and visual evaluation tools.The appropriateness and compatibility of the tools were assessed using questionnaires,which included illustrations,GIF dynamic pictures,and ICF items.Correlation analysis was conducted to screen the items,and the validity of the visual evaluation tools was determined through a picture-text matching validity test.Reliability was evaluated using internal consistency or test-retest reliability,and validity was assessed through content validity.Results Each grade of disability was initially divided into five levels.However,after expert consultations and classification revision,each level was ultimately simplified into four levels with clearer descriptions.The Pearson correlation coefficients between all items and the total scores of each part were found to exceed 0.3,and the difference was statistically significant(all P＜0.05).The average and mode of the illustrations and GIF dynamic pictures,when matched with related descriptions,were both above 3,with consistency rates surpassing 50％.Statistical differences were observed in eight items between the two visual assessment tools.The Cronbach's α coefficients,which reflect internal consistency,were all above 0.60.The intra-group correlation coefficients,which indicate test-retest reliability,were all greater than 0.70.The content validity index of the questionnaire at the overall level was above 0.90,while the item-level content validity index was more than 0.78.Conclusions The Chinese grading standards for elderly disability and dementia,which are aligned with the ICF,have been preliminarily established.Visual assessment tools have also been developed,which demonstrate good reliability and validity.Among the two visual assessment tools,GIF dynamic pictures were found to be more popular and easier to understand.
Cognition disordersActivities of daily livingDisabilityReliabilityValidity
NETL
NSTL
万方数据
