brendgen

Question 1

Ethical weakness

Answer 1

Procedure used to gain peer ratings of how aggressive children were, which involved them to draw a circle around 3 most physical and socially aggressive children. Therefore may have caused psychological harm

Question 2

Ethical strength

Answer 2

Got presumptive consent from parents + schools who were already apart of the longitudinal cluster sample from Quebec Newborn Twin Study, therefore they weren’t deceived

Question 3

Validity

Answer 3

The twins grew up in same environment, so if similar behaviours were presented between MZ and not DZ, it was likely to be genotype. Therefore confirms reasons for aggression can be nature as well as nurture

Question 4

Study may lack generalisability

Answer 4

Sample attrition - longitudinal cluster study, therefore pps dropped out (88 pairs) - may have all had a shared individual difference. Therefore could’ve skewed results