Two people look at a red balloon. Do theyexperience the same sensation?

A decrease in the rate of reinforcement on one component of a multiple reinforcement schedule that results in an increase in rate of response on the other component is a _________?

a) anticipatory contrast b) positive contrast effect c) negative contrast effect d) discriminatory contrast

A placebo effect occurs when

a. an experimenter finds what he or she expected to discover. b. participants have not been randomly assigned to experimental and control conditions. c. participants change their behavior because of their belief that a treatment has an effect. d. both participants and experimental assistants are unaware of which participants get which treatment.