RAT-STATS is best described as:

RAT-STATS is best described as statistical software for selecting randomized samples. This tool is particularly utilized in the healthcare compliance context, allowing compliance professionals to create valid and representative samples from larger data sets. It employs statistical methods to ensure that the samples selected for auditing purposes are random and unbiased, which is crucial for producing reliable results in assessments of compliance, fraud detection, and quality assurance.

This software is designed to aid organizations in demonstrating compliance with various regulations by ensuring that their sampling techniques adhere to recognized statistical standards. By utilizing RAT-STATS, healthcare entities can effectively identify issues within their operations and address them, supporting a culture of compliance and integrity in healthcare practices.