Each Time 3-Year-Old Maddy Uses Her Potty Chair, Her Father

Multiple Choice

Each time 3-year-old Maddy uses her potty chair, her father puts a sticker on a chart. After earning five stickers, Maddy gets to pick out a small toy at the store. Which approach is Maddy's father using to increase the likelihood that Maddy will continue to use the potty chair?

A) bribery
B) classical conditioning
C) reinforcement
D) social learning