Tag Pairing

A matter of pairs

We saw in the previous post how observational studies, in particular cohort studies and case-control studies, are full of traps and loopholes. One of these traps is the backdoor through which data may be eluding us, causing that we get…
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Birds of a feather flock together

Sometimes, we cannot help confounding factors getting involved in our studies, both known and unknown. These confounding variables open a backdoor through which our data can slip, making those measures of association between exposure and effect that we estimate not…
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