Schaffer and Emerson (1964) studied the attachment behaviour of babies which led to them developing the 4 stages of attachment
Aim of Schaffer and Emerson's study
Investigate at what age different attachments form and the emotional intensity of the attachment
Schaffer and Emerson's procedure
60 babies from working class families in Glasgow
Studied in their homes
visited monthly for a year, then at 18 months
Carers interviewed about protests in everyday separation
7 types of protests showing attachment
left alone in a room
Left alone in a room with other people
Left in their pram outside the house
Left in their pram outside the shop
Left in their cot at night
Put down after being held by an adult
Passed by while sitting in their cot or chair
Schaffer and Emerson's findings
25-32 weeks, 50% showed signs of separation anxiety towards a particular adult
Attachment tended to be towards the most interactive caregiver, not necessarily the person the infant spent the most time with- quality over quantity
40 weeks, 80% had a specific attachment
40 weeks, 30% had multiple attachments
Schaffer and Emerson's conclusion
attachment develops in stages
sensitive responsiveness- form attachments with those who react accurately to the baby's signals
play and communication> feeding and changing
Sensitive responsiveness- the extent to which a parent is in tune with a child's emotional state, can understand the signals and respond appropriately and in a timely fashion
4 stages of attachment
Asocial (first few weeks)
Indiscriminate attachment (2-7 months)
Specific attachment (from 7 months)
Multiple attachment
Asocial
behaviour is similar towards humans and non-humans
Some preference for familiar adults
Happier with other humans
Indiscriminate attachment
observable social behaviour
Preference for humans over inanimate objects
Recognise and prefer the company of other people
No separation anxiety
No stranger anxiety
Specific attachment
Stranger and separation anxiety
Attach to primary attachment figure
65% of PCG are the baby's mother
Multiple attachment
attachment extends
Secondary attachments form
Separation anxiety forms for secondary attachments
STRENGTH of Schaffer and Emerson's study
longitudinal study- shows how attachment develops, reduces individual differences in participants, high internal validity
High external validity- conducted in the baby's homes, natural behaviour
LIMITATIONS of Schaffer and Emerson's study
issue with sample- lacks generalisability, cultural bias and social class bias
LIMITATIONS of Stages of development
problems studying the asocial stage- lack observable behaviour
measuring multiple attachments- Bowlby (1969) children get distressed when their friends leave, not attachment figures
Conflicting evidence on multiple attachments- Bowlby (1969) says a baby forms a primary attachment before multiple attachments, Van Ijzendoorn et al (1993) suggests that in collectivist cultures, multiple attachments are the norm