st: Meta-Regression: Data dredging

[Xavi Barber <xbarber@altern.org>]

Dears statalisters,

I'm a spanish researcher, I'm working in Public Health in Alicante(Spain).

I'm reading about Meta-regression, but I don't undernstant the meaning of 
the word DATA DREDGING.

Can You  help me?




thanks

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