An athletic team almost always wins the game when they play at "home" but they seldom win a game played "on the road.". Their winning appears to be influenced by where the game is played. This illustrates the operant principle of

Franklin has Huntington's disease, and on that basis, we can be virtually certain that

a. Franklin is at least 73 years old. b. Franklin has a history of excessive alcohol consumption. c. Franklin's family has a history of this disease. d. Franklin can be effectively treated with drugs used to treat Parkinson's disease.

Harold is perfectionistic and extremely concerned with maintaining a set routine. He probably suffers from ________ personality disorder

a. schizoid b. obsessive-compulsive c. dependent d. avoidant