### Question
How does UNITED STATES LEADERSHIP AGAINST HIV/AIDS, TUBERCULOSIS, AND MALARIA define impact evaluation research?


### Answer
Under *22 U.S.C. § 7602*, **impact evaluation research** is defined as:

> the application of research methods and statistical analysis to measure the extent to which change in a population-based outcome can be attributed to program intervention instead of other environmental factors

#### Citation:
  - *22 U.S.C. § 7602*
  - Heading: **CHAPTER 83-UNITED STATES LEADERSHIP AGAINST HIV/AIDS, TUBERCULOSIS, AND MALARIA**

