by kleinbl00

So I moderate /r/foodforthought. I like to think it's one of the last bastions of Reddit worth bothering with.

This article came up today - be warned, it's Forbes, so don't check it on unpatched IE running unpatched Flash. Reddit discussion is here which brought up the point that since it's a longitudinal study, it may have been interpreted wrong.

So on the one hand,

Persistent cannabis users show neuropsychological decline from childhood to midlife

But on the other hand,

Correlations between cannabis use and IQ change in the Dunedin cohort are consistent with confounding from socioeconomic status

SCIENCE FIGHT!