Gender intensification responds to many influences, but the strongest one tends to be

When a stimulus is removed from a person or animal resulting in a decrease in the probability of response, it is known as __________

a) positive punishment. b) negative punishment. c) negative reinforcement. d) punishing reinforcement.

The results of a large-scale double-blind study of fetal transplants in the treatment of Parkinson's disease

A) have been suppressed by drug companies. B) were very positive. C) were largely negative. D) were not positive, but very promising. E) were the first successful step in a current large-scale treatment program.