Wilhelm Wundt: He conducted many experiments to better understand the human mind, and marked the start of psychology as an independent science of human behavior.
William James: James created the theory of self, the James-lange theory of emotion, and the two stage model of free will.
Edward Thorndike: Thorndike is famous for his puzzle box experiment on animals to better understand them, and for his focus on the development of educational psychology.
Sigmand Freud: Freud was an Austrian Physician who studied the brains of mammals, and created his own private practice in 1886 specializing in nervous disorders; As the father of psychoanalytic theory, he published papers and books on his work.
BF Skinner: Skinner was an American Harvard graduate psychologist who studied operant conditioning and started “radical behaviorism;” He created many experiments, one known as the skinner box where he manipulated animals.
Mary Calkins: Although many of her theories were not accepted at her time, in 1905, she became president of the American psychological association and established her own psych lab in the U.S
Alfred Binet: Binet was a French psychologist that created the IQ test, and worked a long career as a researcher at a neurological clinic in paris; he published over 200 books, and tried the first attempt at measuring children's intelligence.
Ivan Pavlov: Pavlov was a Russian physiologist who developed the theory of classical conditioning to explain behavior through experimentation with dogs, and examining the possibility of food conjunction with the ringing of a bell.
Harry Harlow: Harlow was an American psychologist best known for his monkey studies where he demonstrated that baby monkeys need more than just minimum sustenance to survive.
Charles Darwin: Charles Darwin was best known for his survival of the fittest theory, and being a pioneer for child development research and psychology.