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A comment on Kids Who Don't Sleep Enough Are at Greater Risk for Depression, Anxiety Later. Parent comment

Re:Kids Who Don't Sleep Enough Are at Greater Risk for Depre... by insomniac on Wednesday January 19, 2011 @04:45AM (#2119290)
The data is not being questioned, the conclusion is.
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Re:Kids Who Don't Sleep Enough Are at Greater Risk for Depre... by ffffruit on Thursday January 20, 2011 @03:16AM (#2123058)
I was answering to the "Correlation is not causation" statement in the comment. Epidemiological studies usually have to satisfy most of the "Bradford Hill" criteria in order to claim a certain association.

More information: http://www.drabruzzi.com/hills_criteria_of_causation.htm

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