Another sociology question..?

Question

What term and theory explains :"People change when they know they are being studied " ?

Answer 1

i call it being studied under a microscope...no one i know likes this feeling...i also called being mind stalked.

Answer 2

Quantum theory.

Answer 3

Well i know that when people know they are being studied and they improve or do better at what ever they are doing or attempt to correct it  this is called the Hawthorn effect.  

also the idea that the study of people in turn effects society is called Double hermeneutic, A theory devised by Anthony giddens.

Oh its just called the observer effect : Observer effect, where the behaviour of those under study may alter due to the presence of the researcher.

That one was really bugging me....