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Lauderdale, et al. (2008)
Only author and year are recorded for this entry. The full title is missing from the register, and we have not supplied one.
What this work gives Aellic
669 adults: actigraphy measured 6.0 hours of sleep against 6.8 hours reported; people sleeping 5 hours over-reported by 1.2 hours, people sleeping 7 hours by 0.4 hours (correlation 0.47). The classic U-shape around 7 hours comes from self-report, so Aellic takes its sleep duration curve from device-measured data.
Where this sits in the engine
This work is on the register, but nothing computes with it today, mostly because the feature it belongs to has not been built yet. It is listed so the numbers on the overview do not claim more than they carry.