Bella likes to knit blankets for babies, and the local hospital has offered her a sweet deal. For every ten blankets she knits in blue or pink yarn, they will pay her a lump sum of $75. Of course,
they are going to charge $15 per blanket in their gift shop to make a profit. Bella understand that she only gets paid for batches of 10 blankets, and does not get paid $7.50 for each blanket as she knits them. This is an example of a __________ schedule of partial reinforcement.
a. fixed ratio
b. fixed interval
c. variable ratio
d. variable interval
Answer: A
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