居家脑卒中患者照顾者营养素养测评量表的编制及信效度检验

Construction and validation of the Nutrition Literacy Scale for Caregivers of Home-residing Stroke Patients

目的编制居家脑卒中患者照顾者营养素养测评量表并检验其信效度,为照顾者营养素养评估提供参考。方法经过文献回顾、质性访谈和专家咨询等方法编制该自评式量表,对306名居家卒中照顾者进行调查,检验量表的信效度。结果量表水平的内容效度指数(S-CVI)为0.900,条目水平内容效度指数(I-CVI)为0.800~1.000。探索性因子分析提取认知态度、知识掌握、技能操作和信息互动评判4个因子,共解释总变异量的56.492%。各维度得分之间及与量表总分呈正相关(均P<0.01)。量表整体Cronbach′sα系数为0.940,各维度Cronbach′sα系数0.828~0.929;折半信度为0.767,重测信度0.920,各维度重测信度0.768~0.910。最终量表共包含4个维度、36个条目。结论居家脑卒中患者照顾者营养素养测评量表信效度良好,可以用于测评居家脑卒中患者照顾者的营养素养水平。

Objective To compile the Nutrition Literacy Scale for Caregivers of Home-residing Stroke Patients and test its reliability and validity,and to provide reference for caregiver nutrition literacy assessment.Methods Based on literature review,qualitative interviews,expert consultation,etc.,the Nutrition Literacy Scale for Caregivers of Home-residing Stroke Patients was drafted and used to measure 306 caregivers of home-residing stroke patients for evaluation of its reliability and validity.Results The scale-level content validity index of the scale was 0.900,and the item-level content validity index ranged from 0.800 to 1.000.Exploratory factor analysis extracted four factors,including cognitive attitude,knowledge mastery,skills,and information interaction and judgment,all explaining 56.492%of the total variation.There was a positive correlation between either pair of dimension scores,and between each dimension score and the total score of the scale(P<0.01 for all).The overall Cronbach′sαof the scale was 0.940,and the Cronbach′sαof each dimension was 0.828-0.929.The half-reliability was 0.767,the retest reliability was 0.920,and the retest reliability of each dimension ranged from 0.768 to 0.910.The final scale consists of 4 dimensions and 36 items.Conclusion The Nutrition Literacy Scale for Caregivers of Home-residing Stroke Patients enjoys good reliability and validity,and it can be used to assess the nutritional literacy level of caregivers of home residing stroke patients.