Abstract:

Objective To develop the Ego Depletion Scale for Type 2 Diabetes Patients and evaluate its reliability and validity，and to provide a specific assessment tool for evaluating ego-depletion in self-management. Methods Guided by the self-control strength model，the initial scale was constructed through literature review，semi-structured interviews，2 rounds of expert consultation，and a pilot survey. A convenience sampling method was employed to recruit 460 patients with Type 2 Diabetes from the endocrinology department of a tertiary hospital in Wuhan，Hubei Province，between April and July 2024. They were randomly divided into 2 subsets for exploratory factor analysis and confirmatory factor analysis. Results A total of 451 valid questionnaires were collected. Exploratory factor analysis extracted 6 common factors，with a cumulative variance contribution of 73.231%. In confirmatory factor analysis，an item was deleted due to failing to meet the standardized loading value criterion. The revised Ego Depletion Scale for Type 2 Diabetes Patients comprised 6 dimensions and 22 items. The total Cronbach’s α coefficient was 0.911；split-half reliability was 0.744；the content validity index was 0.860. Correlation coefficients between the total score and scores of each dimension of the scale and the total score of the Self-Regulatory Fatigue Scale ranged from 0.558 to 0.946（P<0.001）. Conclusion The scale exhibits robust reliability and validity，serving as a scientifically instrument for assessing ego depletion in patients with Type 2 Diabetes.

Key words: Type 2 Diabetes, Ego Depletion, Self-Regulatory Fatigue, Scale Development, Reliability, Validity, Psychological Care

摘要：

目的 编制2型糖尿病患者自我损耗量表并检验其信效度，为测评其自我管理中的自我损耗提供特异性评估工具。 方法 基于自我控制力量模型，通过文献回顾、半结构式访谈、2轮专家函询和预调查构建测试版量表。采用便利抽样法，于2024年4—7月，选取湖北省武汉市某三级甲等医院内分泌科的460例2型糖尿病患者进行问卷调查，采用随机数字法将其分为2个部分，用于探索性因子分析和验证性因子分析。 结果 回收有效问卷451份。探索性因子分析提取出6个公因子，累计方差贡献率为73.231%；验证性因子分析中，因标准化载荷未达标删除1个条目，修正后的2型糖尿病患者自我损耗量表包括6个维度和22个条目。总量表的Cronbach’s α系数为0.911，折半信度为0.744，内容效度指数为0.860，量表总分及各维度得分与自我调节疲劳量表总分的相关系数为0.558~0.946（P<0.001）。 结论 该量表具有良好的信效度，可作为2型糖尿病患者自我损耗的测量工具。

关键词: 2型糖尿病, 自我损耗, 自我调节疲劳, 量表编制, 信度, 效度, 心理护理