Schedules of Reinforcement

2. A girl is giving out leaflets to passersby in the street. Sometimes a passerby takes the leaflet and sometimes not.

3. Drought-affected farmers are waiting for the rain but no one knows when the drought will end.

4. Being tipped about six out of every ten orders.

5. Shooting penalty kicks.

6. Shooting with an air gun at a target to win a stuffed toy when you are not very good at it.

7. Making an average of ten phone calls to prospective customers to sell a product.

8. Walking in the forest, looking for mushrooms.

9. A boy gets a reward every fifth time he makes his bed.

10. Being served breakfast at 9 am each morning.