Centre for Statistics in Medicine, University of Oxford, Oxford, UK.
Diabet Med. 2011 Mar;28(3):306-10. doi: 10.1111/j.1464-5491.2010.03190.x.
To develop a simplified true/false response format of the Revised Diabetes Knowledge Scale and assess scaling assumptions, reliability and validity of the binary response format (the Simplified Diabetes Knowledge Scale) and compare with a multiple-choice version.
Ninety-nine respondents attending an outpatient clinic completed the multiple-choice version of the Revised Diabetes Knowledge Scale and the simplified version of the Revised Diabetes Knowledge Scale. The response patterns and psychometric properties of both questionnaires were assessed in order to test the construct validity of the simplified version.
The mean age of the respondents was 57 years (range 21-83 years) and 64% were men. Respondents attained an average score of 65% on the Simplified Diabetes Knowledge Scale, compared with 62% on the Revised Diabetes Knowledge Scale. Overall, the Simplified Diabetes Knowledge Scale appeared to be somewhat easier to complete compared with the Revised Diabetes Knowledge Scale, as indicated by the number of missing responses.
The Simplified Diabetes Knowledge Scale provides researchers with a brief and simple diabetes knowledge questionnaire with favourable psychometric properties. The scale may require further updating to include other items relevant to diabetes education. This simplified version will now undergo translation and validation for use among minority ethnic groups resident in the UK.
制定修订版糖尿病知识量表的简化是非题作答格式，并评估二分类作答格式（简化糖尿病知识量表）的定标假设、信度和效度，并与多选题版本进行比较。
99 名在门诊就诊的受访者完成了修订版糖尿病知识量表的多选题版本和修订版糖尿病知识量表的简化版本。为了检验简化版本的结构效度，评估了两种问卷的反应模式和心理测量特性。
受访者的平均年龄为 57 岁（范围 21-83 岁），其中 64%为男性。与修订版糖尿病知识量表的 62%相比，受访者在简化糖尿病知识量表上的平均得分为 65%。总体而言，简化糖尿病知识量表似乎比修订版糖尿病知识量表更容易完成，这反映在缺失的回答数量上。
简化糖尿病知识量表为研究人员提供了一个简短而简单的糖尿病知识问卷，具有良好的心理测量特性。该量表可能需要进一步更新，以纳入其他与糖尿病教育相关的项目。这个简化版本现在将进行翻译和验证，以便在英国的少数民族群体中使用。
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