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.