William james was the a. author of the first psychology textbook b. father of psychology c. first american psychologist d. first psychoanalyst

The correct answer is A) Author of the first psychology textbook.

In 1890, William James produced the book Principles of Psychology. This was the first textbook of its kind. He then used this book in order to teach the first college level psychology course in an American university. His initial textbook and course have had a tremendous impact on American society and has resulted in several different discoveries.