From evidence to conclusions in psychiatric research.
OBJECTIVE
To identify problems in the derivation of conclusions from evidence in psychiatry research.


METHODS
The scientific model of falsificationism is described as determining the logical requirements for proving conclusions from research evidence. Common types of problematic conclusions are identified, and examples from the current research literature are given.


RESULTS
Poorly formed conclusions are based on inadequate hypotheses, ambiguously phrased, blind to negative findings, fallacious in logic, or neglectful of alternative explanations.


CONCLUSIONS
The risks of accepting poorly formed conclusions are premature closure of scientific investigations, poor basis for decisions in psychiatric practice, and provision of misinformation to patients. It is recommended that practitioners be attentive to this aspect of critically appraising research.
Bilsker
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Department of Psychiatry, University of British Columbia, Vancouyer.
D006801:Humans; D011570:Psychiatry; D012106:Research / Q000592:standards*