Measuring people's bodily proportions and their personalities, and developing a theory based on body types is known as __________

A single-word utterance that expresses a complete thought is called a(n) ______

Fill in the blank with correct word

To assist in his experimental analysis of behavior, Skinner invented a device known as the "operant chamber." This apparatus was designed to allow researchers to manipulate

a. an organism's level of motivation. b. the amount of planning behavior that was required of an organism. c. an organism's state of mind. d. the consequences of an organism's behavior.