Research Foundation - Flanders (FWO-Vlaanderen), Brussels, Belgium.
Public Health Nutr. 2012 Sep;15(9):1630-8. doi: 10.1017/S1368980012002959. Epub 2012 Jun 13.
To evaluate a web-based nutritional knowledge questionnaire for primary-school children.
Children's nutritional knowledge was assessed in five domains: healthy choices (twenty-seven items), estimated recommended portions/servings (eight items), nutrient content (five items), main food function (five items) and categorization of food items (eight items).
The questionnaires were completed in school.
A convenience sample of 576 Belgian children (aged 7-12 years) from fourteen primary schools completed the questionnaire once, 386 completed the questionnaire twice.
Healthy choices could be answered correctly by 73 % of the children, nutrients by 59 %, food categorization by 49 %, main function by 38 % and portion estimation by 36 %. Children's test-retest intra-class correlations were 0·75 for healthy choices, 0·33 for nutrients, 0·61 for food categorization, 0·44 for main function, 0·47 for portion estimation and 0·76 for the total scale. The intra-class correlation was lower in the youngest age group (grade 2: 0·51, grade 4: 0·65, grade 6: 0·66). The total score was significantly lower in the retest. The instrument was in general positively evaluated by the children.
The instrument is a promising, practical, inexpensive tool with acceptable test-retest reliability in fourth and sixth graders.
评估一个面向小学生的网络营养知识问卷。
儿童的营养知识在五个领域进行评估：健康选择（二十七项）、估计推荐份量/份（八项）、营养成分（五项）、主要食物功能（五项）和食物分类（八项）。
在学校完成问卷。
来自十四所小学的 576 名比利时儿童（年龄 7-12 岁）完成了一次问卷，386 名儿童完成了两次问卷。
73%的儿童能正确回答健康选择问题，59%的儿童能回答营养问题，49%的儿童能回答食物分类问题，38%的儿童能回答主要功能问题，36%的儿童能回答份量估计问题。儿童的重测信度 ICC 为 0·75 用于健康选择，0·33 用于营养素，0·61 用于食物分类，0·44 用于主要功能，0·47 用于份量估计，0·76 用于总量表。年龄最小的年龄组（2 年级：0·51，4 年级：0·65，6 年级：0·66）的 ICC 较低。重测的总分明显较低。该工具总体上受到儿童的积极评价。
该仪器是一种有前途的、实用的、廉价的工具，在四、六年级学生中具有可接受的重测信度。
