Daughter (1st Grade) Misbehaving. ODD? Need advice.?

My daughter is in 1st grade in a private school. She's been getting in trouble lately for a variety of issues. Doesn't raise her hand to talk in cl or talks over other people when it's their turn. Steps on kids shoes and trips them. She and other girls were throwing rocks at the school. She gets up and bothers kids while they are doing their homework in the middle of cl. We've tried a variety of punishments...time outs, time spent in room, we've taken privaleges and favorite toys away. As a last resort, we've ed her. None of these things seem to have worked. School wants to test her for an attention deficit disorder. We agree. We think there are symptoms of Opposition Defiance Disorder. Anybody have any advice.