To make a valid assessment of the relationship between any two variables, further study is required in which isolated variables are contrasted with a control group. Many variables may be related through chance alone others may be related through some unknown factor. Data dredging is sometimes described as "seeking more information from a data set than it actually contains."ĭata dredging sometimes results in relationships between variables announced as significant when, in fact, the data require more study before such an association can legitimately be determined. Sometimes conducted for unethical purposes, data dredging often circumvents traditional data mining techniques and may lead to premature conclusions.
The traditional scientific method, in contrast, begins with a hypothesis and follows with an examination of the data. Data dredging (data fishing) - Data dredging, sometimes referred to as "data fishing" is a data mining practice in which large volumes of data are analyzed seeking any possible relationships between data.
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