The roman emperor diocletian was an absolute ruler. this means that he had unlimited power and authority. refused to consult advisors. was a figurehead with limited power. ruled through military force.

The Roman emperor Diocletian was an absolute ruler. This means that he had unlimited power and authority.

Diocletian molded his figure to that of an autocrat, rising above the masses and imposing ceremonial and architectural forms toward the court.

An autocracy is a system of government that concentrates power in a single figure whose actions and decisions are not subject to external legal restrictions, nor to regulatory mechanisms of popular control (except perhaps because of the implicit threat of a coup d'état or of a mass insurrection.) Absolute monarchy and dictatorship are the main historical forms of autocracy.

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.