True or false the states in the United States are individual countries?

False. The US is a unified country with separate states who adhere to the United States government.

answer; /// i believe that the correct answer is that it lets you see and evaluate different formats as you develop your workbook;

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.