Studied 60 Glasgowerian babies for 18 months, mostly from skilled workingclass families.
Mothers/babies were visited once a month for 1 year and then again at 18 months.
Parents asked to keep diary of observations.
Give a strength and weakness of a longitudinal study
strength-same children were observed and followed up regularly, eliminating individual differences as a confounding variable.
weakness-families involved were from the samedistrict and social class means that the sample waslimited and could present little generalisibility. Different cultures havedifferent child rearing practise
Give an evaluation point in terms of external validity of the experiment
Naturalistic observation-behaviour was studied in the environment where it most naturally occurs(parents taking notes within their own homes,own routines)
-researchers were not present at the time- more natural experiment(generalised to real life settings)
Characteristics of multiple attachment.
Form secondary attachments with familiar adults with whom they spend time (e.g. father, grandparents)
Characteristics of specific attachment.
show stranger anxiety,primary attachmen to one particular individiual,show seperation anxiety.
Characteristics of indiscriminatory attachment
preference for people rather than inanimate objects,happier in presnence of humans than alone,recognise familar faces and use them as secure base.
Characteristics of asocial stage.
prefer faces to non faces, accept comfort from any adult,behaviour between noon objects and humans quite similar.