Stotts Jodi L, Lohse Barbara
Department of Nutritional Sciences, The Pennsylvania State University, University Park, Pennsylvania 16801, USA.
J Nutr Educ Behav. 2007 Sep-Oct;39(5 Suppl):S167-70. doi: 10.1016/j.jneb.2007.03.091.
To examine the reliability of the ecSatter Inventory (ecSI), a measure of eating competence.
Self-report questionnaires were administered in person or by mail. Retesting occurred 2 to 6 weeks after completion of the first questionnaire.
Both administrations of the questionnaire were completed by 259 participants who were mostly food secure, white females with some college education; mean age was 26.9 +/- 10.4 years.
Test-retest reliability and internal consistency.
Spearman's rank correlation coefficients to estimate test-retest reliability and Cronbach alpha coefficients to estimate internal consistency.
Spearman's rank correlation coefficient for ecSI total score was 0.68; subscale coefficients were 0.70 for eating attitudes, 0.70 for contextual skills, 0.65 for food acceptance, and 0.52 for internal regulation. Cronbach alpha coefficient for ecSI total score was 0.77. Subscale alphas coefficients were 0.80 for eating attitudes, 0.69 for contextual skills, 0.68 for food acceptance, and 0.66 for internal regulation.
This study provides psychometric evidence about the reliability of ecSI as a measure of eating competence in this sample. Although some ecSI items may require revision, results suggest that the instrument may be used to evaluate nutrition education designed to improve eating competence.
检验进食能力测量工具——生态萨特量表（ecSI）的信度。
通过当面或邮寄方式发放自填式问卷。在完成第一份问卷2至6周后进行重测。
259名参与者完成了两份问卷，他们大多粮食无忧，为接受过一定大学教育的白人女性；平均年龄为26.9±10.4岁。
重测信度和内部一致性。
采用斯皮尔曼等级相关系数估计重测信度，采用克朗巴赫α系数估计内部一致性。
ecSI总分的斯皮尔曼等级相关系数为0.68；各分量表系数分别为：进食态度0.70、情境技能0.70、食物接受度0.65、内部调节0.52。ecSI总分的克朗巴赫α系数为0.77。各分量表的α系数分别为：进食态度0.80、情境技能0.69、食物接受度0.68、内部调节0.66。
本研究为ecSI作为该样本中进食能力测量工具的信度提供了心理测量学证据。尽管ecSI的一些条目可能需要修订，但结果表明该工具可用于评估旨在提高进食能力的营养教育。
