Underestimates Biological Factors: One limitation is that SLT under-emphasizes innate biological influences. In Bandura’s Bobo doll experiments, for example, boys consistently showed more physical aggression than girls, regardless of the experimental condition.Bandura attributed this to social factors (like differential reinforcement for aggression in boys vs girls). However, the robust gender difference hints at biological factors (e.g. hormonal differences such as testosterone levels) playing a role in aggression.