genetic factors of agression

Question 1

chromosomes

Answer 1

males typically chromoses=xy females chromosomes=xx

psychologists wanted to examine individuals with chromosomes XYY
super males as possess two y male hormones

Question 2

research for chromosomes

Answer 2

court brown-discovered 314 patients with genotype XYY
put forward view that these patients should remain hospitalised due to their increased likelihood of aggressive behaviour

however, thailgaard undertook research into XYY males and found that these increase height of individual but not agressive behaviour

Question 3

Concordance-twin studies

Answer 3

coccarno et al compared MZ and DZ twins. measured concordance of criminal behaviour. MZ had 50 percent and DZ only 19 for physical agression. MZ 28 per tn and DZ 7 for verbal agression

Question 4

concordance-adoption studies

Answer 4

rhee and waksman did meta analysis on adpotiknal studies in direct agressikn and anti social behaviour