Underpowered studies and exaggerated effects: A replication and re‐evaluation of the magnitude of anchoring effects
研究发现锚定效应文献中的研究设计统计功效常低于30%，通过重复一项原始效应为31%的研究（将功效从46%提升至96%），新结果仅为3.4%，表明原始效应被严重夸大。
Abstract We reconsider one of the most widely studied behavioral biases: anchoring effects. We estimate that study designs in this literature, including replication studies, routinely fail to achieve statistical power of more than 30%. This study replicates an anchoring study that reported an effect size of a 31% increase in participants' bids. In the replication, we increased the design's statistical power from 46% to 96%, reducing the average exaggeration of a statistically significant result by a factor of seven. Our replication results reject the size of the original estimated effects. We find an estimated effect of 3.4% (95% CI [−3.4%, 10%]).