1. Five-year-old David gives up easily in the face of frustration. How could you develop his persistence? 2. Every Saturday at noon, the local fi re department tests the fi re signal. Is this a...

1. Five-year-old David gives up easily in the face of frustration. How could you develop his persistence?

2. Every Saturday at noon, the local fi re department tests the fi re signal. Is this a reinforcement schedule and, if so, what sort of schedule is it?