Student Teams-Achievement Division, Mathematical Reasoning and Self-efficacy Beliefs

This dataset is from a research project aimed at investigating the effect of the Student Teams-Achievement Division (STAD) on students' mathematical reasoning and self-efficacy beliefs. The data were collected from 301 secondary school students aged 14 to 20. The data include participants' demographics, independent variables, dependent variables, mediating variables, and the covariates as applicable to each of the associated prospective manuscripts. The dataset is accompanied by three supplementary files: The R script for a robust ANCOVA procedure, the PROCESS macros for SPSS output, and the Multilevel modeling analysis SPSS output.

本数据集源自一项旨在探究学生团队-成就划分（Student Teams-Achievement Division，简称STAD）对学生数学推理能力及自我效能信念影响的研究项目。数据收集自301名14至20岁的中等学校学生。数据内容涵盖参与者的人口统计学信息、自变量、因变量、中介变量，以及适用于相关前瞻性论文的协变量。数据集附带三个补充文件：用于稳健的方差分析协方差（ANCOVA）程序的R脚本、用于SPSS输出的PROCESS宏，以及多级建模分析的SPSS输出。