“…Gender. Thirty-seven studies reported on gender as a potential factor related to aggression development [52-54, 59, 61, 62, 65-67, 69, 70, 72-74, 77, 78, 81, 83, 88, 90-92, 94, 99- , on the other hand in three studies females showed more aggression [83,88,110], whereas in the remaining 12 studies males showed more aggression [52,54,65,66,69,72,73,100,111,115,116,117] (see Table 3). Age.…”