The CHECKROB Stata module helps researchers test how robust their results are by running different regression models with various combinations of variables. It records the coefficients and standard errors for each model, making it easy to compare them. This tool is useful for checking if adding or removing certain variables affects the results of a study. It is similar to another tool called rcheck but can handle more complex types of analysis. CHECKROB was used in a study by Barslund et al. in 2007 to show the robustness of their results.