Welcome to the topic of continuous quality improvement (CQI)! CQI: Data is a video course meant to show how data can be documented and analyzed for continuous quality improvement in your organization. This video lesson, Selecting Useful Data, is the third in a series of five. It covers the two purposes of key performance indicators (KPIs), the three types of KPIs–lagging, leading, and coincident–and examples of common KPIs for organizations.