I don't think it's anything to do with testosterone. It's about power, control, insecurity and cycles of behaviour. Females are just as prone to that as males.
Well I don't have any proof, sir, it was just a bold naked assertion about the testosterone. Having said that, females might be prone to those things you listed but they certainly don't resort to beatings with nearly the same frequency as men. Again, I am making an assertion with no good evidence but I feel more comfortable with this one.
Maybe know what you are talking about before you make assertions.
"There are major difficulties in obtaining reliable statistics in this area but mental health studies consistently show that in heterosexual couples only about 25% of the time is domestic violence solely male-on-female. The same studies show that 25-30% of the time the violence is exclusively female-on-male, with the remainder mutual combat. However, one agreeable result emerges from these studies: The safest place for a woman is in her home with the biological father of her children."
http://www.familytx.org/research/articles/humanproblem.html