The document discusses three main definitions of abnormality: deviating from social norms, deviating from ideal mental health, and failure to function. It then examines strengths and weaknesses of each definition. Next, it explores biological, psychodynamic, behavioral, and cognitive approaches to understanding psychopathology. For each approach, it outlines relevant theories, examples, and strengths and weaknesses. Finally, it discusses biological therapies for psychopathology including drugs like anti-anxiety medications, antidepressants, and antipsychotics as well as electroconvulsive therapy.