The famous experiment is the "Sally Anne task", which goes like this:
The child is in a room with Sally and Anne. Sally has a basket and Anne has a box. Sally puts the marble in her basket and leaves the room. While she's out, Anne steals the marble, and puts it in her box. Sally then comes back into the room.
You ask the child "Where will Sally look for her marble?". This tests whether or not they can fathom the world through Sally's eye, and see that her view of it will be different from their own.
The experiment was formulated by Simon Baron-Cohen.
The child is in a room with Sally and Anne. Sally has a basket and Anne has a box. Sally puts the marble in her basket and leaves the room. While she's out, Anne steals the marble, and puts it in her box. Sally then comes back into the room.
You ask the child "Where will Sally look for her marble?". This tests whether or not they can fathom the world through Sally's eye, and see that her view of it will be different from their own.
The experiment was formulated by Simon Baron-Cohen.