Kevin Murnane writes:
''The behaviorists were like the orcs of psychology. Limited in vision, arrogant, belligerent and intolerant, they ruled the world of scientific psychology with an iron fist from the 1920s through the 1950s. Many of them were very capable scientists, however, and much of their work, especially in their signature area of learning, has stood the test of time. The behaviorists' biggest mistake lay in insisting that the principles of learning they discovered provided a complete and thorough explanation of what people do and why they do it. They thought they had the whole story. They didn't. They only had part of the story but it was an important part. We don't want to make the same mistake the behaviorists made and think their learning theories fully explain what we see people do in MMOs.''