Development of a Shortened Version of the Social Support Appraisals Scale for Older People
10.11783/j.issn.1002-3674.2024.06.004
- VernacularTitle:老年人社会支持评价量表简化版的研制
- Author:
Jian YANG
1
;
Tingxian WANG
;
Yanwei LIN
Author Information
1. 广东医科大学公共卫生学院流行病与卫生统计学系(523808);广东医科大学公共卫生学院社会医学与卫生事业管理系
- Publication Type:Journal Article
- Keywords:
Social support;
The social support appraisals scale;
Item response theory;
Shortened version;
Item screen-ing
- From:
Chinese Journal of Health Statistics
2024;41(6):823-829
- CountryChina
- Language:Chinese
-
Abstract:
Objective To develop and evaluate a shortened version of the social support appraisals scale(SSA).Methods A total of 1130 older people employed with the standard were administered by cluster random sampling method in this study.The data of 565 respondents were randomly selected for item screening by classical test theory and item response theory(IRT),while the data of the remaining 565 respondents were used to evaluate the reliability and validity of the shortened version scale.Results Each dimension retains 4 excellent items(5 items in the friend dimension),a shortened version SSA-13 was formed.Cronbach's α of SSA-13 was 0.755～0.866 for each dimension and 0.903 for the total scale.Confirmatory factor analysis showed χ2/v was 4.93,comparative fit index was 0.94,incremental fit index was 0.94,goodness of fit index was 0.92,Tucker-Lewis index was 0.92,root mean square error of approximation was 0.08,and root mean square residual was 0.02,all the fitting indexes have reached the ideal indexes.IRT discrimination parameters were estimated to be 2.34～3.10,except for the item SS-A18(-5.56～1.23),the difficulty parameters of other items were estimated to be-3.76～2.25,average item information ranged from 0.764～1.311.Compared with the original scale,the average information of SSA-13 was reduced 16.06%for the total scale.Conclusion The SSA-13 showed good reliability,validity,and can be used as a simple,reliable and effective measurement tool in social support evaluation studies for the older adult.
