Sakura is teaching her younger sibling Ayaka to ride a bike….

Sakura is teaching her younger sibling Ayaka to ride a bike. She initially gives Ayaka a tiny toy when Ayaka simply sits on the bike. Then, she gives Ayaka a toy only when Ayaka pedals forward while Sakura holds the seat. Finally, she gives Ayaka a toy only when Ayaka pedals on her own. Sakura is using the technique of

Three years ago, the Food Whiz supermarket included its empl…

Three years ago, the Food Whiz supermarket included its employees in a profit-sharing plan in which workers receive raises based on the company’s profits. Since company executives began this plan, worker productivity at Food Whiz has increased. This productivity increase is best explained in terms of