paid $10 for every 20 puzzles solved
fixed ratio- know how many
studying for a class that has surprises quizzes
variable interval- don't know how long
slot machines
variable ratio- don't know how many
trolling for fish in a lake
variable interval- don't know how long
speed traps on highways
variable interval- don't know how long
selling a product from door to door
variable ratio- don't know how many
getting the clothes out of the dryer once it buzzes
fixed interval- you know how long
going up a stair case to reach the landing
fixed ratio- you know how many
doing 20 pushups to stay fit
fixed ratio- you know how many
playing bingo
variable ratio- don't know how many
getting a paycheck every 2 weeks
fixed interval- know how long
random drug testing
variable interval
strike in bowling
variable ratio- don't know how many
calling your mechanic to see if your car is fixed
variable interval- don't know how long
frequent flyer program where one gets a free flight for a specific number of miles flown
fixed ratio- know how many
child screams and cries in store and sometimes gets what he wants
variable interval- don't know how long
child likes to watch rugrats every afternoon
fixed interval- know how many
trying to find a parking spot on LSUE campus
variable ratio- don't know how many
waiting for a sunny day to go to the beach
variable interval- don't know how long
surfer waiting for the perfect wave to ride in
variable ratio- don't know how many
looking for worms under rocks
variable ratio- don't know how many