How does the media play a role in the laws and policy ?

The media acts as the primary conduit between those who want to influence policy and policymakers controlling the scope of political discourse and regulating the flow of information. The policies, on which the media focuses can, and often does, play an important role in determining the focal issues for policymakers

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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.