When a case is not governed by a statute or other type of law, judges tend to follow the decisions of other judges in similar, prior cases. these similar cases are called

Precedents.

Explanation:

In the legal system, precedents are the decisions of the courts in deciding subsequent cases with similar issues or facts based on the previous court decisions. Common law and equity attaches great importance to the assessment of cases according to consistent rules of theory, so that identical facts produce similar and predictable results. Courts have the power to review and overturn earlier precedents.

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.

answer; correlational;