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Could it be that there is some selection bias in this study? I don't mean to say the conclusions are wrong per se, but I would think that people working very fe
by Mahn 10y ago
Could it be that there is some selection bias in this study? I don't mean to say the conclusions are wrong per se, but I would think that people working very few hours (unemployed?) or too many hours (factory workers?) are typically less educated than those in the middle, which could explain the IQ disparity.
- JamesBarney 10y agoI don't think factory workers are more likely to work 40 hours weeks than white collar workers.
- douche 10y agoIf you're allowed to, you go after every minute of that sweet, sweet, overtime. Time and a half (or double time, if you work holidays) is a beautiful thing.
- JamesBarney 10y agoThat's over 40 vs white collar. This study was just comparing people who worked 40 vs 25. There's a lot more studies showing that working 60 vs 40 is bad for you cognition, but this one is unique in showing the same effects at a much loader working load.
- jacalata 10y agoOver the last few decades longer hours have become associated with higher earnings and higher educational backgrounds http://www.nber.org/digest/jul06/w11895.html http://www.nber.org/digest/jul06/w11895.html (old data but a good start)