Data for the ''Preschool children need long term perceptual-motor knowledge for tool making: the effect of familiarity'' study

This data is collected in 2015 and 2016. Deatils of the coding, data anaysis and data reduction will appear in a paper submitted to a journal. First version of the data was deleted because of a mistake in one data entry.

本数据集采集于2015年与2016年。该数据集的编码、数据分析与数据约简的详细方法将发表于一篇已投稿至学术期刊的论文中。由于单条数据录入存在错误，本数据集的首个版本已被删除。