Why does my 2 year old only misbehave for me?

My 2 year old daughter is good at daycare, good for my husband, and good for everyone else but always misbehaves when I am with her. I don't understand this because I discipline her the same as everyone else and am consistent with the discipline. Everyone tells me that it is because she knows she can get away with it, but she doesn't! I spend more time with her than anyone else and give her a lot of positive attention when she is being good. I am at a loss and don't know what I can do differently. Has anyone else experienced this? Any advise?