Read the scenario below and answer the question that follows.Susan is watching a football game when the game goes to commercial. She knows that each commercial break during the game takes a different amount of time to resolve. She gets up to make a snack for herself. She checks back frequently to see if the game is back from commercial. After 3 minutes and 30 seconds, the game comes back on and Susan returns to the room.Which of the following statements is true?
Answer
A
Susan is on a fixed-interval schedule of reinforcement.
B
Susan is on a variable-interval schedule of reinforcement.
C
Susan is on a fixed-ratio schedule of reinforcement.
D
Susan is on a variable-ratio schedule of reinforcement.
Explanation
Susan checks back after varying amounts of time because each commercial break lasts a different length. The game returning is the event she is waiting for, so reinforcement depends on time passing rather than on a number of responses. That makes this a variable-interval schedule; a fixed-interval schedule would involve the event occurring after a predictable amount of time.
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