A researcher pairs a tone of 1200 Hz with an electric shock in a conditioning experiment. On some trials, he presents tones of 1000 Hz or 1500 Hz without the shock. The procedure he is using resembles the method used to bring about

Conversion disorder was formerly called _______

a. manic-depression c. hysterical neurosis b. hebephrenic disorder d. cataplexy

Grouping people with intellectual disability into categories of intermittent, limited, extensive, and pervasive is based upon

a. IQ scores. b. how much help they need in daily living. c. interaction skills. d. prognosis and diagnosis.