Outline how Lorenz and Harlow studied attachment using animals. (6 marks)

Lorenz and Harlow studied animals as a way to find out about attachments. Lorenz used Greylag goose eggs and randomly divided them into two groups. Half of the eggs were raised with their mother in their natural environment, the other half were hatched in an incubator where Lorenz was present. The behaviour of the geese, such as who they attached too, was studied. Comparatively, Harlow's experiment took place in a controlled environment where infant Rhesus monkeys were reared with two surrogate mothers. Both 'mothers' were wire models, one was left bare with food and the other was wrapped in a blanket with no food. The time that each monkey spent with each mother was recorded. Further to this, long term effects such as relationships and sociability were also recorded.