Yes, most definitely it could be! I have an 11 year old soon to be 12 and a about that time she started with mood swings and being very difficult to live with!! She and a lot of her friends are the same way and her brother was that way at about age 12 so I would just be patient if you are dealing with a child who is going through puberty with all of their mixed emotions & their attitudes it is very difficult. I think it is more difficult for them because they really don't understand what's going on with their bodies! They are growing up physically not always mentally!!