( September 2007) ( Learn how and when to remove this template message)ĭata dredging ( data fishing, data snooping) is the inappropriate (sometimes deliberately so) search for 'statistically significant' relationships in large quantities of data. Unsourced material may be challenged and removed. Please help improve this article by adding citations to reliable sources. There are several terms describing the act of data dredging.This article needs additional citations for verification. ![]() “When a large number of associations can be looked at in a dataset where only a few real associations exist, a P value of 0.05 is compatible with the large majority of findings still being false positives.” Data dredging results in false positive results.
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