Test and item analysis demo data file

This is a demo data file containing 375 cases and dichotomous scored answers (0,1) for 50 multiple choice items. It is used in the tutorial on test and item analysis “Analysing a test with packages in R” tutorial document available at https://figshare.com/s/aa594e1913d00fe02852本数据集系演示文件，包含375个案例，针对50个多项选择题提供二分评分答案（0，1）。该数据集用于R包测试与项目分析教程“使用R包分析测试”中，相关教程文档可于以下链接查阅：https://figshare.com/s/aa594e1913d00fe02852。