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This course exposes students to the principal theoretical paradigms that have been used to conceptualize the etiology and treatment of abnormal behaviour. Students will become familiar with the general assumptions made by each paradigm and this will serve as a framework to examine the major psychological disorders. Students will also consider attempts to find an integrative paradigm in the diathesis-stress/biopsychosocial model, as well as other eclectic models of psychotherapy which are employed to treat psychological disorders. Students will apply their knowledge of the paradigms and diagnostic system to case studies and will also use their burgeoning scientific skills to critically evaluate relevant research literature on the effectiveness of various mental health treatment approaches.