Answer:Ruling Out Rival Hypotheses
Step-by-step explanation:
Ruling Out Rival Hypotheses – There are times where one explanation is not enough to make conclusion and in this case there may be other explanation which may require that researchers do additional research to get rid of these other many explanations .Ruling out rival hypothesis: is then a principle which states that when there is a situation that we need to define or determine the question that one should ask is whether they have exhausted all other possible explanations regarding that issue in question.