why some schools have underachievement

Underachievement. I tried to find an article that had the title: "why some schools have underachievement." (in dutch) but couldn't, because I live too far from real libraries, except for internet. Some articles are cited in other articles and are difficult to get.
Maybe I should have tried harder. I had other things to do. Because now it seems that this school has it.
When turning to the web, I come up with this (incomplete) list:
immigration difficulties
material deprivation and labelling
being a boy
communication skills

hmmm... I'm wondering whether underachieving is influenced by culture. In the Netherlands, the culture of "don't raise your head above the mowing field" is said to be one of the causes of underachievement.