intervention study

https://doi.org/10.1351/goldbook.15829
Epidemiological investigation designed to test a hypothesized cause–effect relationship by intentional change of a supposed causal factor in a population.
Source:
PAC, 2007, 79, 1153. (Glossary of terms used in toxicology, 2nd edition (IUPAC Recommendations 2007)) on page 1246 [Terms] [Paper]