Outcome research examines the end results of health services on individuals in order to provide scientific evidence to inform healthcare decisions. It helps people make informed healthcare choices and improves delivery and outcomes by producing evidence-guided research. While outcome research groups like AHRQ and PCORI improve patient care and outcomes, outcome research relies on funding, so less common illnesses or those in developing countries may be understudied. Overall, outcome research can significantly impact healthcare policies by using evidence to guide decisions.