Dr. Adams has constructed a theory that attempts to describe the changes in how people perceive themselves over time. He notes that the first step is for children to recognize themselves in a mirror. Later, people tend to identify themselves by the material goods that they own. In the next stage of life, self-perception is determined by people's assessment of their own behavior. Dr. Adams is probably what type of psychologist?
a. clinical psychologist
b. developmental psychologist
c. environmental psychologist
d. social psychologist
