Summary of Bandura, Ross and Ross (1961) Study on Transmission of Aggression

Background to the Study

Albert Bandura, Dorothea Ross, and Sheila Ross conducted a pivotal study in 1961 focusing on how children imitate aggression from adult role models. Their hypothesis was influenced by earlier research that indicated children could learn behaviors through mere observation, particularly behaviors classified as sex-appropriate.

Aims

The primary aim of the study was to investigate whether children would imitate aggression performed by adults, while also considering the influence of both the child's and the role model's sex. The researchers sought to understand if same-sex role models would have a stronger impact, particularly with aggression being perceived as a predominantly male behavior.

Procedure

The study involved 72 children (36 boys and 36 girls) aged between 37 and 69 months from Stanford University Nursery School. They were separated into control and experimental groups. The experimental groups were further divided based on whether they observed aggressive or non-aggressive models, and whether these models were male or female. Each child underwent a standardized procedure, beginning with individual playtime followed by exposure to the role model.

In the aggressive condition, for approximately a minute, the model displayed aggressive behaviors towards an inflatable Bobo doll, using phrases like "Kick him" and "Pow". After observing the models, children were allowed to play with various toys, including the Bobo doll, while their behaviors were subsequently recorded and analyzed for imitative and non-imitative aggression.

Results

The results demonstrated that children who observed aggressive models exhibited significantly more aggressive behaviors compared to the control group. This behavior was evident in both physical and verbal aggression. Notably, boys were more inclined to exhibit imitative physical aggression towards male models, while girls were equally able to imitate verbal aggression from both male and female models. Males engaged more with aggressive toys, whereas females favored dolls and tea sets.

Conclusions

The study provided solid evidence for social learning theory, showing that children can learn aggressive behaviors through observation without reinforcement. It highlighted the role of same-sex models in the imitation of aggression. Overall, the research emphasized the importance of monitoring the role models children observe, especially in media, as it may shape their behaviors adversely.

Strengths and Weaknesses

Strengths of the study included a controlled environment and the use of standardized procedures that ensured reliability. Participants were matched according to their baseline aggression, providing fair comparisons. However, weaknesses included potential demand characteristics, as some children may have felt pressured to imitate the models, thus skewing the results. Ethical concerns arose from exposing children to aggression without knowing the long-term behavioral impacts.