Slipping Anchor?: Testing the Vignettes Approach to Identification and Correction of Reporting Heterogeneity
提出了检验锚定小插曲方法两个关键假设的统计检验，发现英国老年人样本中认知和身体功能的报告存在异质性，两个假设均被拒绝。
We propose tests of the two assumptions under which anchoring vignettes identify heterogeneity in reporting of categorical evaluations. Systematic variation in the perceived difference between any two vignette states is sufficient to reject vignette equivalence. Response consistency—the respondent uses the same response scale to evaluate the vignette and herself—is testable given sufficiently comprehensive objective indicators that independently identify response scales. Both assumptions are rejected for reporting of cognitive and physical functioning in a sample of older English individuals, although a weaker test resting on less stringent assumptions does not reject response consistency for cognition.