schaffers stages - evaluation Flashcards
Schaffer and Emerson’s study has external validity
- Most of the observations were made by parents during ordinary activities and reported to Rs
- So, the behaviour of the babies was unlikely to be affected by the presence of observers
- babies behaved naturally
- Has a high level of mundane realism as families were visited in their own home
- can be generalised to everyday situations
The same children were followed-up
they do not have confounding variables of individual differences between Ps
Schaffer and Emerson’s sample were a group of working class mothers in the 1960s Glasgow
Small sample size = 60 families
- The study may lack temporal validity, as child rearing practises have changed significantly in the last 50 years
- Used a limited sample so it is not representative = cant be generalised
Schaffer and Emerson’s results relies on self reports from the mothers and their ability to observe
- Parents may be busy to record observations = miss things out
- Biased in what they report = might not report signs of anxiety = social desirable answers
- Behaviour is not accurately recorderd
There are problems with a stage model
- Families are judged based on these inflexible stages
- if their child’s attachment do not follow the stages it could reflect badly on them
- Stages may apply differently to different cultures
Problems studying the asocial stage
- Babies that are young have poor concentration and are generally almost immobile
- Therefore, it is difficult to make any judgements about them based on observations of their behaviour
- may do some actions that don’t have any meaning behind it
- It may be the babies are actually quite social but, because of flawed methods they appear to be asocial
Longitudinal studies are time-consuming, expensive, and there is subject attrition (lots of people dropping out)