Anonymised Dataset on Overconfidence Biases in Social Prediction Tasks Among Young Decision Makers

This dataset was collected as part of an experimental study examining overconfidence biases—specifically overestimation, overplacement, and miscalibration—among university students during a social prediction task. Participants were asked to estimate the likelihood of their own and their peers’ success in a music-related guessing activity. The data include coded responses in both Excel and SPSS formats and have been fully anonymised.本数据集源自一项实验研究，该研究针对大学生在社会预测任务中表现出的过度自信偏差展开考察，具体涵盖过度估计（overestimation）、过度定位（overplacement）与校准偏差（miscalibration）三个核心亚型。研究要求参与者估算自身及同伴在一项音乐类猜测活动中的成功概率。本数据集包含经编码的响应数据，格式涵盖Excel与SPSS，且已完成全面匿名化处理。