This is a living list of studies that I either really enjoyed or spoke to me in some way.
Eating Really Improves Decisions
This was my first non-university study that interested me. I heard it during Ignite NZ 2015 in a talk called What's the difference between a software developer and a lawyer? by David Downs and it boils down to this image:
- "We find that the percentage of favorable rulings drops gradually from ≈65% to nearly zero within each decision session and returns abruptly to ≈65% after a break." that is, as the judge becomes hungrier, their rulings become less favourable.
- "We have presented evidence suggesting that when judges make repeated rulings, they show an increased tendency to rule in favor of the status quo. This tendency can be overcome by taking a break to eat a meal, consistent with previous research demonstrating the effects of a short rest, positive mood, and glucose on mental resource replenishment". Though there are allowances that a multitude of avenues weren't accounted for such as current mental load or mood.
- If you're going to make a decision, a big one, make it after having some food and a little walk.
Lack of Sleep Is Bad, Who Knew?
- Sleeping either 4 or 6 hours a night (for 14 days) has a comparable cognitive performance to not sleeping for two nights straight
- But, sleepiness of subjects during those 14 days never hit the same levels as they would under two nights of not sleeping
Organisational Complexity ≈ Software Bugs
- The number of developers current an ex on a module, the fraction of the org that has worked on the module, frequency of edits and five other measures make up "Organisational Complexity"
- The main takeaway: More Organisational Complexity most probably means more bugs.
For a more indepth, but still accessible writeup, see: https://augustl.com/blog/2019/best_bug_predictor_is_organizational_complexity/