Which of the Following Scenarios Best Depicts Variable-Ratio Reinforcement

Multiple Choice

Which of the following scenarios best depicts variable-ratio reinforcement?

A) Bishop gives his dog a treat every time the dog barks on command.
B) Dexter continues to put money into slot machines because he never knows how many pulls of the arm it will take to win the jackpot.
C) Doreen does not study for her accounting exams until one or two nights before the test is scheduled.
D) Agatha frequently studies the material from her physics class because she is not certain when the professor will be giving pop quizzes.