T.J.
we never let our daughter sleep in our room, unless she was ill. when she was your daughters age she went through the same thing but the key was to not give up no matter what. we put a night light in her room with a fan on high everynight, put her to bed the same time everynight with a snack before hand. we would than sit on the floor and say or do nothing, not even looking at her. we would do this for 3 or 4 nights, after that we would move and sit a few more feet away from her until she fell asleep, yes she would cry at times while doing this but you just ignore it. until finally one night you were at the door and than a few days later out the door all together. it took awhile and alot of patience but it has worked. she sleeps through the night and is fine with it. the key is to never pick her up and put her in your room again just because she is crying, it will defeat the whole purpose and she knows it, trust me. good luck. there is a name for this but i just can't think of it at the moment.