Some sociologists believe working class underachievement is the product of factors inside the school environment that hinder a pupils ability to achieve. These factors include: labelling, streaming, pupil subcultures, pupil identities and the development of a self-fulfilling prophecy
Labelling
The process of teachers judging and labelling pupils according to how closely they fit the "ideal pupil"
When students are given a positive label, they react to it by creating a positive self-concept, which means they are motivated to work hard and improve their grades. This also works in reverse, with negative labels leading to negative self-concepts and less motivation.
Invest in 'nike' identities, leading to self-exclusion from education because it does not fit their identity and way of life; they see it as unrealistic (it is for richer and cleverer people) and they also see it as undesirable (it does not suit their habitus)