Choosing Controls
This chapter sharpens the focus to a central pitfall of case-control studies in psychiatric research: selecting valid controls. It revisits the logic of control selection and the guideline of balancing the odds. It proposes that this guideline can be used to operationalize the selection of controls in almost any context. It shows a practical application by taking up the problem of control selection in the context of comorbid disorders, a central dilemma for psychiatric case-control studies.
Keywords: case-control studies, psychiatric research, valid controls, logic, control selection
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