Essential tools for data quality checks
13 May 2026
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Before we fit statistical models with our datasets, we typically go through a few checks to confirm that our data are accurate and complete. Regardless of whether you have obtained data from an organization or built the dataset yourself, it is worthwhile to check for data entry errors. Below, we will show you four essential Stata commands for performing quality checks on your data: duplicates, isid, assert, and misstable.