if someone has a big head does it mean they are clever

Question: if someone has a big head does it mean they are clever
- Keywords:
  brain,
  human,
  intelligence
Asked by allybobway to Anna, Hayley, Iain, Rebecca on 23 Jun 2015. This question was also asked by hannah B.
- Iain Bethune answered on 23 Jun 2015:
  
  Not really – it’s just an expression that usually means they have a high opinion of themselves, whether they are clever or not!
  
  I think there is some scientific research that showed that larger heads typically means larger brains which typically means more intelligence, but not always!

Question: if someone has a big head does it mean they are clever