A textbook detailing the Civil Rights movement primary or secondary?

Secondary.

Explanation:

It is a secondary source because it was not written by someone that was in the events and they got the information from a primary source, but the textbook was a secondary source.

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.

no one should discriminated against because he or she is not from a minority group