can anyone tell me what this is called?

[mrsshears]

I have read somewhere on here about a study that was carried out about children who were placed in top groups and how it basically carries on that they continue to achieve and becomes a 'self forefilling prophecy',i think this is the description used,it was called "the *** effect" i think?
If anyone knows what its called i would be really greatful

thanks in advance

Self fulfilling? Try googling it.

sorry that post is a bit isnt it.
It has an actual name which i cant remember,its been talked about on here before but i cant for the life of me think of the name of it.

It's the expectation effect - I'm fairly sure