I've experienced roommate conflicts between interracial students that have both broken down stereotypes and reinforced stereotypes," said one Penn resident advisor (RA).

The traits that characterise him are very contradictory to the racial stereotypes that black people are aggressive and uneducated," says Ashby Plant of Florida State University.

We think it happens to help people preserve their beliefs, so they can still hold on to the previous stereotypes

The worst possible aspect of the Obama effect is that people could ignore his race altogether and continue to hold on to their old racial stereotypes.

Somehow the old male and female stereotypes no longer fit.

The old stereotypes of men's and women's work have been changing more quickly than ever before, except perhaps in my own marriage

The old stereotypes about men and women.

Also, stereotypes are often positive, particularly of groups that we ourselves belong to.

And so there is nothing inherently wrong about stereotypes.

But there are problems with stereotypes.

Contrary to some stereotypes, most adolescents believe they must be tolerant of differences among individuals though they do not always find this easy in the cliquish (拉幫結(jié)派的) environment of high school.

For one thing, stereotypes are often accurate.

So, one problem with stereotypes is while we are good at drawing conclusions from them, often our information isn't reliable.

The survey shows us that today's teens are affectionate, sensible and far happier than the angry and tortured souls that have been painted for us by stereotypes.

When you ask people about their concept of stereotypes, they get it pretty much right.