weaknesses

• • Culture bias – Stanford University, America – lack of universality to other cultures​
• • Validity – might not be true in natural environments = low ecological validity ​
• • Validity – might not be true in today’s society = low temporal validity ​
• • Ethical issues – exposing children to violent behaviour = lack of protection from harm ​
• • Generalisability – small sample size (72 children) = doesn’t reflect wider population / all human behaviour