For which type of research is knowledge discovery in databases (KDD) least appropriate?
1. To cross-link risk factors for type 2 diabetes and cardiovascular disease
2. To identify the efficacy of a treatment for children with the rare and fatal Batten disease.
3. To test the hypothesis that polycystic kidney disease is best treated with antihypertensive
4. To determine the most significant risk factors for congestive heart failure
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Rationale: KDD is least appropriate for identifying the efficacy of a treatment for children with the rare and fatal Batten disease. KDD identifies complex patterns and relationships in collected data; it is a powerful tool, suitable for the analysis of large amounts of data. KDD may be used to identify risk factors for diseases or efficacy of particular treatment modalities. However, KDD is not used when insufficient data would be available, as in the case of a rare disease.
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