What procedure might be used to monitor data consistency?

The correct choice highlights the significance of reliability studies in monitoring data consistency. Reliability studies involve assessing the agreement between different data collectors or registrars when abstracting the same cases, which helps ensure that the data collected is consistent, accurate, and reproducible. By examining how closely the results agree, these studies provide valuable insights into the reliability of the data being recorded, ultimately improving the quality of the tumor registry.

While reabstracting studies can also play a role in data quality assurance, they focus more on the verification of specific cases by having a second registrar or team review the information collected. Therefore, reliability studies are typically seen as a broader approach to evaluating data consistency across all collected cases.

Understanding the focus and methodology of these studies is crucial for maintaining data integrity and ensuring that tumor registries can effectively contribute to cancer research and treatment planning.