According to Guthrie, what is the function of “reinforcement”? What did Guthrie and Horton observe that confirmed their view of “reinforcement”? In Guthrie’s theory, what is the function of...

According to Guthrie, what is the function of “reinforcement”? What did Guthrie and Horton observe that confirmed their view of “reinforcement”?

In Guthrie’s theory, what is the function of maintaining stimuli? For example, how were these stimuli used to explain what other theorists called drives and intentions?