Suggest that males are aggressive and unemotional, with the exception of anger, and that the male should leave the home every day to make a living and be the principal wage earner.

traditional gender roles

Explanation:

There are certain behaviors that are seen and viewed to be traditionally acceptable and appropriate for people based on their genders.  Males are seen to be very unemotional and aggressive in some cases and they are expected to leave their homes on a daily basis to make a living and be the breadwinner of the homes, while women carry the domestic and child-rising responsibilities.  

Some feminist movements have made certain attempts to see if they can change these perceived roles being played across the gender lines because they are perceived to be very inaccurate.  

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.        

do all equestions have to be answered