Ensuring data is collected correctly from multiple sources requires a comprehensive approach. First, I would ensure that the data collection process is well-defined and documented. This includes understanding what data needs to be collected, where it will come from, how it will be stored, and any other relevant information. Once this is established, I would then create a plan for validating the accuracy of the data being collected. This could include setting up automated checks or manual reviews to ensure that all data points are accurate and complete. Finally, I would also set up processes to monitor the data over time to identify any changes or discrepancies in the data. By taking these steps, I can ensure that data is being collected accurately from multiple sources.