Technological Change. First radio broadcast of Message: President Calvin Coolidge, 1923. First television broadcast of Message: President Harry Truman, 1947.
Answer:
it reveals reality and unreality
Explanation:
I believe the answer is: <span>a purely experimental branch of natural science
According to watson, every act of treatments that is aimed to fix a certain psychological problems is only based on prediction since there is no sure thing to predict other people's behavior due to the number of factors that might influence it. Because of this, he refers to psychology as a 'purely experimental;' branch.</span>
