The development of attachment - stages

• Schaffer and Emerson - Glasgow babies study
• 5-23 weeks - year
• asocial - 2 months - same response to all objects
• presocial - 4 months - prefer human company, no stranger anxiety
• specific - 7 months - primary caregiver, stranger anxiety, separation anxiety
• multiple - 1 year on - secondary attachments
• individual differences, some mothers less sensitive so less likely to report back
• lacks historical validity, 1960s
• lacks generalisability, glasgow babies, working class
• lacks cultural validity, collectivist cultures would expect more multiple attachments