Question-induced cognitive biases in reports of dietary intake by college men and women.
Question-induced cognitive biases in reports of dietary intake by college men and women.
复制标题
大学生男女膳食摄入报告中由问题引起的认知偏差。
DOI：
10.1037//0278-6133.10.4.244
复制
发表时间：
1991
期刊：
影响因子：
--
通讯作者：
Mingay,DJ
中科院分区：
文献类型：
--
作者：
Smith,AF;Jobe,JB;Mingay,DJ
在两个实验中，调查问卷结构的变化如何影响受访者对饮食摄入量两个方面的报告-各种食物的食用频率和食用部分的大小。在实验1中，大约400名受试者在做出频率判断之前，被要求思考他们吃过某种食物的特定场合或所有场合。在频率判断之前的想法影响了这种判断：思考食物被消耗的场合范围比只思考最近的场合导致更高的频率估计。在实验2中，同样的受试者对他们的几种食物的典型份量相对于所描述的标准作出判断。八种食物中只有一种被正确估计，并受到所述标准之间差异的显著影响。这些结果表明，受访者并不是特别敏感的部分大小的定义。我们认为，这些现象的发展的一般理论的认知过程，有益于健康调查响应的影响。
In two experiments, investigated how variations in questionnaire structure influence respondents’ reports of two aspects of dietary intake—the frequency with which various food items are eaten and the sizes of the portions that are eaten. In Experiment 1, approximately 400 subjects, prior to making a frequency judgment, were asked to think either about a specific occasion or about all the occasions on which they had eaten a particular food. The thoughts that preceded the frequency judgment influenced that judgment: Thinking of the range of occasions on which a food is consumed resulted in higher frequency estimates than thinking only of the most recent occasion. In Experiment 2, the same subjects made judgments about their typical portion sizes of several foods relative to described standards. For only one of eight foods were estimates properly and significantly affected by differences among the described standards. These results suggest that respondents are not particularly sensitive to portion-size definitions. We consider the implications of these phenomena for the development of a general theory of the cognitive processes that subserve health-survey responding.