Dr. Layaway administers a test of intelligence and scores it by dividing the test taker's mental age by his or her chronological age and then multiplying that figure times 100. This method of scoring is the same as that used for the original __________ intelligence test.

Both depressed and manic symptoms appear in the general classification of

A. schizophrenia. B. mood disorders. C. obsessive-compulsive disorder. D. psychosis.

_____ is a process that causes us to begin and maintain a particular behavior in order to satisfy certain needs or desires

a) An incentive b) Homeostasis c) The Yerkes-Dodson law d) Motivation