While this volume is written as a series of lectures and in a somewhat free and easy style, every effort has been made to present facts in unmutilated form and to state theoretical positions with accuracy. In approaching subjective psychology for the first time, the reader meets with one great difficulty. He comes in from the world of things-a world which he can manipulate, hold up, examine and change about. When he comes to subjective psychology, he leaves all this behind he has to face a...

Watson was the father of behaviorism. His now-revered lectures on the subject defined behaviorism as a natural science that takes the whole field of human adjustment as its own. It is the business of behaviorist psychology to predict and control human activity. The field has as its aim to be able, given the stimulus, to predict the response, or seeing the reaction, to know the stimulus that produced it. Watson argued that psychology is as good as its observations: what the organism does or...