Brendgen et al. (2005) Social Aggression (Edexcel A-Level Psychology): Flashcards
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Social aggression definition
Social aggression definition
Manipulative behaviors: spreading rumors, withdrawing friendship
Brendgen et al. study year
Brendgen et al. study year
2005
Main aim of Brendgen study
Main aim of Brendgen study
Determine genetic vs environmental causes of social aggression
Twin types in study
Twin types in study
MZ (monozygotic) & DZ (dizygotic)
Data sources for aggression ratings
Data sources for aggression ratings
Teachers and classmates/peers
Physical aggression: MZ vs DZ correlation
Physical aggression: MZ vs DZ correlation
MZ much higher than DZ - suggests genetic cause
Social aggression: MZ vs DZ correlation
Social aggression: MZ vs DZ correlation
Roughly equal in MZ & DZ - suggests environmental cause
Direction: which aggression leads to other?
Direction: which aggression leads to other?
Physical aggression leads to social, not vice versa
Strength: data collection method
Strength: data collection method
Multiple sources (teachers & peers) validates findings
Weakness: sample characteristics
Weakness: sample characteristics
Small size & age-specific (6 yrs), limits generalisability