Schedules of Reinforcement

For every ten words spelled correctly a child gets a star by their name on the bulletin board

• fixed interval

• variable interval

• fixed ratio

• variable ratio

Checking your mailbox for which which comes daily at 3pm

• fixed interval

• variable interval

• fixed ratio

• variable ratio

An owl hunting for mice in a forest

• fixed interval

• variable interval

• fixed ratio

• variable ratio

A sales clerk at a bakery waiting for the next customer to arrive

• fixed interval

• variable interval

• fixed ratio

• variable ratio

A child is rewarded if they are sitting correctly after every two minutes goes by

• fixed interval

• variable interval

• fixed ratio

• variable ratio

Selling cookies door to door

• fixed interval

• variable interval

• fixed ratio

• variable ratio

Waiting for clothes to come out of the washing machine that takes 42 minutes

• fixed interval

• variable interval

• fixed ratio

• variable ratio

Waiting for tech support on a phone call when the "elevator music" comes on

• fixed interval

• variable interval

• fixed ratio

• variable ratio

Slot machines are based on this schedule

• fixed interval

• variable interval

• fixed ratio

• variable ratio

Kwik Trip rewards program where you get a free coffee after a specific number of visits

• fixed interval

• variable interval

• fixed ratio

• variable ratio