Harry Harlows’s goal was to get his monkeys to fi gure out that in any set of six trials, the food was always under the same box. Initially the monkeys chose the boxes randomly, sometimes fi nding food and sometimes not. However, after a while their behavior changed: after two consistent trials of fi nding the correct box, they continually went back to the same box. Harlow concluded that the monkeys had “learned how to learn.” According to Harlow the monkeys established: