yeah, I mean it was ridiculous click-bait 'science'. Destined to
   be popular, instantly believed as true by millions without
   question and shared far-and-wide as 'proof of something' and
   little to no scrutiny.

   They measured giving of stickers among 5-12 yr olds. That age
   range is... oh, I don't have to go into it. The article says it
   well.