How is the Estimated Total Relevant Documents calculated?

The Estimated Total Relevant Documents is calculated by projecting the richness rate across the project. This approach allows for an estimation based on the proportion of relevant documents identified in the reviewed sample, which can then be extrapolated to the entire dataset. The richness rate reflects the proportion of relevant documents within a certain sample or subset. By applying that rate to the total number of documents being considered in the project, you can estimate the total number of relevant documents.

This method takes advantage of statistical sampling techniques, ensuring that the estimate is both efficient and useful for understanding the overall dataset without requiring a full review of every document. Other methods might involve counting or averaging, but they do not provide a reliable estimation method based on sampling and projection, which is particularly crucial in large datasets where comprehensive review may not be feasible.