My DD was diagnosed when she was 7-8? with ODD. She's never been abused.
I guess there is a spectrum for this like so many other MH diagnoses.
She LOVES to argue no matter what the issue & even if she is wrong. In her mind she is right & will voice her opinion & tell you yours is wrong.
She's been in therapy for at least 3 yrs & now the whole family is involved in it. I'm not really sure it helps much but I don't want it to stop.
She also has encopresis. She's 12yo.
Her biggest issue is controlling her anger when she gets in what we call the red zone. When she's there she is out of control & cant be reasoned with. We have to separate her from the family & ask her to use her skills to calm down. She always says she can't. But in time she does calm down.

Funny thing is she only does this at home. She's an excellent student at school, a role model for others & loves her place there. I think she is a different person there.
We're working with her therapist to see if she is in the autistic spectrum. From what I've studied girls present very differently in autism than boys do & most information about autism is based on boys. So we're not sure where she stands.
Recently with her therapist she told us that our DD has a great deal of power in our house. And she does. Her attitude & emotions can make the tone in the house very heavy. So instead of trying to "change" her what we're asked to do is disempower her. That as soon as our emotions change bec of her that she now has control.
This is can now see. So we're trying to take that power away from her. When she starts these rants we walk away from her & try to carry on normally & ignore her.
I can easily turn her off. The problem is my SO. He feeds into her issues & tries to control her, make her conform so he's seen as the boss. Plus he loves to argue too.
He's an issue as much as she is. It's like having 2 bullies in the house when they go at it. I need him to be an adult, not pick a school yard fight with her so his point is seen. She doesn't see anything!