avgeeks1and1Shows how varying reinforcement schedules affect the behavior of pigeons; compares the outcome of the tests with the results of similar experiments made in a typical elementary classroom. Explains that variable-interval reinforcement on any organism produces behavior that is persistent and difficult to extinguish. Buy this film on DVD. [wp_cart_button name=controlling-behavior-through-reinforcement-1956 price=12.95][show_wp_shopping_cart]