Data completeness refers to which of the following?

Data completeness is fundamentally about ensuring that the collected datasets have a comprehensive and accurate representation of the information needed for analysis and reporting. The concept encompasses two essential aspects: avoiding omissions in data collection and achieving high rates of known values in data fields.

Firstly, avoiding omissions in data collection is crucial because missing information can lead to gaps that adversely affect the integrity of the database. If certain data points are not captured, it can compromise the ability to analyze trends, make informed decisions, and generate reliable statistics. Therefore, a thorough approach to data collection seeks to include all relevant variables and observations.

Secondly, high rates of known rather than unknown values in data fields ensure that the data entries are reliable and can be utilized effectively. When there are a significant number of unknowns, the utility of the data diminishes as it's difficult to draw meaningful conclusions or perform accurate analyses. The goal is to maximize the presence of known data to enhance the clarity and usability of the dataset.

Both aspects are integral to the concept of data completeness, as they collectively contribute to a robust and reliable data collection process that can support informed decision-making and effective management in clinical and research settings.