PREFERENCE FOR ONE OF TWO IDENTICAL STIMULI: EXPECTATIONS, EXPLICIT INSTRUCTIONS AND PERSONAL TRAITS
PREFERENCE FOR ONE OF TWO IDENTICAL STIMULI: EXPECTATIONS, EXPLICIT INSTRUCTIONS AND PERSONAL TRAITS
复制标题
DOI：
10.1111/j.1745-459x.2010.00294.x
复制
发表时间：
2010-07-01
影响因子：
2
通讯作者：
Lawless, Harry T.
中科院分区：
文献类型：
--
作者：
Chapman, Kathryn W.;Lovelace, Eugene;Lawless, Harry T.
大多数消费者，如果有两个相同的食物样本，会表达对其中一个的偏好，而不是选择一个没有偏好的选项。在不同条件下的三个试验中，特别是当第一个测试对相同或不同时，以及当参与者被明确告知这些对通常是相同的时，研究人员对这种看似不合理的偏好的稳定性和潜在原因进行了研究。从第一次试验到第二次试验，没有偏好的选择通常会增加，特别是对于那些在第一次试验中看到一对不同样本的群体。明确的指示，样品可能是相同的，未能减少表达的偏好，在最初的审判，虽然它有一些影响，在以后的审判。分析，由个人，序列的偏好或无偏好的反应，跨试验支持独立的顺序响应和反对稳定的个人特质作为预测的偏好choice.Practical APPLICATIONS更多的研究需要做，以了解在偏好测试的起源和操作的偏见。当在样本只有轻微差异的条件下进行测试时，参与者倾向于避免无偏好选项。在解释偏好测试的结果并为其结果分配实际意义时，这一点可能很重要。此外，单次试验测试可能会产生与多次试验测试不同的结果，后者允许检查最近经验中变化的影响。
Most consumers, given two identical food samples, express a preference for one, rather than choosing a no-preference option. The stability and potential causes of this seemingly irrational preference were examined across three trials under different conditions, specifically, when the first test pair was identical or different, and when participants were explicitly told that the pairs would often be identical. Choice of no preference typically increased from the first to second trial, especially for groups who saw a pair of different samples on the first trial. The explicit instruction that samples might be the same failed to reduce expressing a preference on the initial trial although it had some effect on later trials. Analysis, by individuals, of sequences of preference or no-preference responses across trials support independence of sequential responses and argue against stable personal traits as a predictor of preference choice.PRACTICAL APPLICATIONSMore research needs to be done to understand the origins and operation of biases in preference tests. When tested under conditions in which the samples differ only slightly, participants tend to avoid the no-preference option. This is potentially important when interpreting the results of preference tests and assigning practical significance to their outcomes. Also, single trial testing may produce somewhat different results from multi-trial testing, the latter allowing for examination of effects of variation in recent experience.