Liu Xiaoli, Dai Long, Chen Bo, Feng Nongping, Wu Qianhui, Lin Yonghai, Zhang Lan, Tan Dong, Zhang Jinhua, Tu Huijuan, Li Changfeng, Wang Wenjuan
National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
Zhonghua Yu Fang Yi Xue Za Zhi. 2016 Jan;50(1):56-60. doi: 10.3760/cma.j.issn.0253-9624.2016.01.010.
To evaluate the validity and reliability of Diabetes Self-management Knowledge, Attitude, and Behavior Assessment Scale (DSKAB).
We selected 460 patients with diabetes in the community, used the scale which was after two rounds of the Delphi method and pilot study. Investigators surveyed the patients by the way of face to face. by draw lots, we selected 25 community diabetes randomly for repeating investigations after one week. The validity analyses included face validity, content validity, construct validity and discriminant validity. The reliability analyses included Cronbach's α coefficient, θ coefficient, Ω coefficient, split-half reliability and test-retest reliability.
This study distributed a total of 460 questionnaires, reclaimed 442, qualified 432. The score of the scale was 254.59 ± 28.90, the scores of the knowledge, attitude, behavior sub-scales were 82.44 ± 11.24, 63.53 ± 5.77 and 108.61 ± 17.55, respectively. It had excellent face validity and content validity. The correlation coefficient was from 0.71 to 0.91 among three sub-scales and the scale, P<0.001. The common factor cumulative variance contribution rate of the scale and three sub-scales was from 57.28% to 67.19%, which achieved more than 50% of the approved standard, there was 25 common factors, 91 items of the total 98 items held factor loading ≥0.40 in its relevant common factor, it had good construct validity. The scores of high group and low group in three sub-scales were: knowledge (91.12 ± 3.62) and (69.96 ± 11.20), attitude (68.75 ± 4.51) and (58.79 ± 4.87), behavior (129.38 ± 8.53) and (89.65 ± 11.34),mean scores of three sub-scales were apparently different, which compared between high score group and low score group, the t value were - 19.45, -16.24 and -30.29, respectively, P<0.001, and it had good discriminant validity. The Cronbach's α coefficient of the scale and three sub-scales was from 0.79 to 0.93, the θ coefficient was from 0.86 to 0.95, the Ω coefficient was from 0.90 to 0.98, split-half reliability was from 0.89 to 0.95.Test-retest reliability of the scale was 0.51;the three sub-scales was from 0.46 to 0.52, P<0.05.
The validity and reliability of the Diabetes Self-management Knowledge, Attitude, and Behavior Assessment Scale are excellent, which is a suitable instrument to evaluate the self-management for patients with diabetes.
评估糖尿病自我管理知识、态度和行为评估量表（DSKAB）的有效性和可靠性。
选取社区460例糖尿病患者，采用经两轮德尔菲法和预试验后的量表。调查员采用面对面方式对患者进行调查。通过抽签随机选取25例社区糖尿病患者在1周后进行重复调查。效度分析包括表面效度、内容效度、结构效度和区分效度。信度分析包括Cronbach's α系数、θ系数、Ω系数、分半信度和重测信度。
本研究共发放问卷460份，回收442份，有效432份。量表总分为254.59±28.90分，知识、态度、行为分量表得分分别为82.44±11.24分、63.53±5.77分和108.61±17.55分。具有良好的表面效度和内容效度。三个分量表与总量表的相关系数为0.71～0.91，P<0.001。量表及三个分量表的共同因子累积方差贡献率为57.28%～67.19%，达到认可标准的50%以上，共有25个共同因子，98个条目中有91个条目在其相关共同因子上的因子载荷≥0.40，具有良好的结构效度。三个分量表高分组与低分组得分分别为：知识（91.12±3.62）分和（69.96±11.20）分、态度（68.75±4.51）分和（58.79±4.87）分、行为（129.38±8.53）分和（89.65±11.34）分，三个分量表平均分差异明显，高分组与低分组比较，t值分别为-19.45、-16.24和-30.29，P<0.001，具有良好的区分效度。量表及三个分量表的Cronbach's α系数为0.79～0.93，θ系数为0.86～0.95，Ω系数为0.90～0.98，分半信度为0.89～0.95。量表重测信度为0.51；三个分量表为0.46～0.52，P<0.05。
糖尿病自我管理知识、态度和行为评估量表的有效性和可靠性良好，是评估糖尿病患者自我管理的适宜工具。
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