Kacie designed an experiment to disprove the hypothesis that people are more likely to others when they are in a good mood. her approach illustrated the concept of

I believe the answer is: Falsification

Falsification refers to the process of making a statement that contradict the factual evidence. In research, research based on principle of falsification is being done in order to disprove previous conclusion and establish that it is impossible to derive a correct conclusion due to insufficient access to all relevant factors.

answer; developmental;