Telemarketers are reinforced by which schedule? People checking the oven to see if the cookies are done are on which schedule? Airline frequent-flyer programs that offer a free flight after every...

Telemarketers are reinforced by which schedule? People checking the oven to see
if the cookies are done are on which schedule? Airline frequent-flyer programs that
offer a free flight after every 25,000 miles of travel are using which reinforcement
schedule?