Internal validity of a household food security scale is consistent among diverse populations participating in a food supplement program in Colombia
Internal validity of a household food security scale is consistent among diverse populations participating in a food supplement program in Colombia
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DOI：
10.1186/1471-2458-8-175
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发表时间：
2008-05-23
影响因子：
4.5
通讯作者：
Uribe, Martha C. Alvarez
中科院分区：
文献类型：
--
作者：
Hackett, Michelle;Melgar-Quinonez, Hugo;Uribe, Martha C. Alvarez
目的：我们评估了当地适应的哥伦比亚家庭粮食安全量表 (CHFSS) 的有效性，该量表用作 2006 年哥伦比亚安蒂奥基亚改善食品和营养计划 (MANA - Plan Departamental de Seguridad Alimentaria y Nutricional de Antioquia) 食品补充剂部分评估的一部分。 方法：受试者包括 MANA 中有学龄前儿童的低收入家庭，这些家庭对至少一项做出肯定的答复CHFSS 项目（n = 1,319）。 Rasch 模型用于通过测量值和 INFIT 值来评估项目的心理测量特征。 CHFSS 表现的差异根据居住地区、社会经济状况和 MANA 注册儿童数量进行评估。使用差分项目功能 (DIF) 进一步评估按组划分的量表的一维性。结果：大多数 CHFSS 项目表现出良好的适应性，大多数 INFIT 值在 0.8 至 1.2 的适当范围内。在按居住地区进行的比较中，发现除两个项目外的所有项目的组间项目测量值均一致。只有两种成人物品在城市和农村家庭之间表现出 DIF。结论：结果表明，改编后的 CHFSS 是评估 MANA 等粮食援助计划参与者家庭粮食安全的有效工具。
Objective: We assessed the validity of a locally adapted Colombian Household Food Security Scale (CHFSS) used as a part of the 2006 evaluation of the food supplement component of the Plan for Improving Food and Nutrition in Antioquia, Colombia (MANA - Plan Departamental de Seguridad Alimentaria y Nutricional de Antioquia).Methods: Subjects included low-income families with pre-school age children in MANA that responded affirmatively to at least one CHFSS item (n = 1,319). Rasch Modeling was used to evaluate the psychometric characteristics of the items through measure and INFIT values. Differences in CHFSS performance were assessed by area of residency, socioeconomic status and number of children enrolled in MANA. Unidimensionality of a scale by group was further assessed using Differential Item Functioning (DIF).Results: Most CHFSS items presented good fitness with most INFIT values within the adequate range of 0.8 to 1.2. Consistency in item measure values between groups was found for all but two items in the comparison by area of residency. Only two adult items exhibited DIF between urban and rural households.Conclusion: The results indicate that the adapted CHFSS is a valid tool to assess the household food security of participants in food assistance programs like MANA.