Courts frequently and regularly change or modify precedents because of the rule of stare decisis. a. true b. false

That statement is false

Modifications indeed happens from time to time, but it happens rarely. In fact, most of the time, courts on current time would use the decision made by the court in the past in order to ensure the same decision would be applicable to similar cases.

i believe the answer is:   psychological  experiment

in this experiment, wilhelm wundt became the first person that implement scientific method in analyzing the pyschological phenomenon.

due to this result, wilhelm wundt also able to make psychology to be acknowledged as a separate scientific field from biology.