Brendgen et al (2005)
- Created by: htownsend9
- Created on: 04-04-17 10:29
Examining Genetic and Environmental Effects on Social Aggression: a Study of 6-Year-Old Twins
KEY -Evaluative Points
AIMS
> To investigate whether social aggression is caused by either genetics or the environment.
> To investigate whether social aggression has the same cause as physica aggression.
> To inestigate whether one type of aggression leads to another.
PROCEDURE
> Recruited from the Quebec Newborn Twin Study > all twins were born between November 1995 and July 1998.
> 234 pairs of twins > 44 MZ males
> 50 MZ females
> 41 DZ males (ALL PAIRS)
> 32 DZ females
> 67 mixed pairs
> Longitudinal study > 5,18,30,48 and 60 months > again at 6 years.
> Data gathered contained 2 ratings of each twin's behaviour > by teachers and by peer pupils.
> Ratings were gathered within the spring term which ensured that all twins were well known.
Teacher ratings > based…
Comments
No comments have yet been made