Experiment research is the type of research this scenario described.
Explanation:
Experimental research is a research that rigidly adheres to a scientific research plan. It constitutes a hypothesis, a variable that can be managed by the researcher, and variables that can be estimated, determined and analyzed. Most importantly, experimental research is built in a controlled environment.
Experimental research attempts to define a relationship between pair of variable. The dependent variable and the independent variable are those pair of variables. After finishing an experimental research study, a relationship between a particular phase of an entity and the variable being inquired is either supported or rejected.
Here research is done among two groups and case is analyzed based on the Experimental research concept.