I NEED HELP OR IM GOING TO FAIL>Why did President Andrew Jackson refuse to annex Texas?

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.

okay what's the question?

answer; the above statement is (false);