You assessed "agression" which is a hypothetical construct, through T.A.T - a projective test, which is, to say the least - controversial
Why have you not taken direct measures of violence,
such as rating by observers
of violence manifestations, in say, a group play?
You can use video, as you know

What are you talking about in "eyneny noheget levasses et
maskenotay on other researcher's data or on their conclusions?
Don't you cite the literature in the area?

Or do you refer to raters' evaluation of
observed behavior accross
diverse dimensions?
This is a wide spread method of collecting empirical data, with its specific methodology
( a number of raters rating the same sections of behavior etc.)