A two-choice discrimination task often produces behavioral contrast. This refers to ______.

A. the extreme difficulty subjects experience in learning two-choice discriminations
B. the inability to extinguish responding to the Sd
C. the decrease in responding to the SD and an increasing responding to the S over training trials
D. an increase in responding to the SD and a decrease in responding to the S over training trials


D. an increase in responding to the SD and a decrease in responding to the S over training trials

Psychology

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In studies with a group of individuals being tested in a series of treatment conditions, factors such as history, instrumentation, and maturation threaten ____

a. internal validity only b. external validity only c. both internal and external validity d. neither internal nor external validity

Psychology

Generalized rules of conduct that tell us how we ought to behave are called

a. instincts. b. social norms. c. obedience. d. demand characteristics.

Psychology

Children who were exposed to psychological trauma or deviant communication patterns have a higher risk of developing

a. autism. b. an organic mental disorder. c. schizophrenia. d. a conversion disorder.

Psychology

An advantage of the experimental method is that it has the ability to indicate cause and effect

Indicate whether this statement is true or false.

Psychology