How are the different ways in which we determine abnormal behavior? Bridley and Daffin discuss the terms epidemiology, prevalence, incidence, comorbidity, etiology, course, and prognosis in relation to mental disorders. What do these terms mean and why are they important in understanding mental disorders? Cite your sources. What are the forms of stigma that often accompany abnormal behavior? Can these stigmas be combatted? How?