Interactional synchrony support
ISABELLA
Role of the father
SCHAFFER AND EMMERSON
GROSSMAN
FIELD
FREEMAN AND ALMOND
Role of the father explanation
OFFICE FOR NATIONAL STATISTICS (2014)
KEY STUDY: Schaffer stages of attachment
SCHAFFER AND EMERSON
Procedure:
Findings:
KEY STUDY: Lorenz (animal studies)
LORENZ
Procedure:
Findings:
Imprinting against
GUITON
KEY STUDY: Harlow (animal studies)
HARLOW
Procedure:
Findings:
Learning theory against
LORENZ
Geese imprinted before feeding and maintained attachment regardless.
HARLOW
Preferred cloth mother even when wire mother providing food.
SCHAFFER AND EMERSON
Primary attachment to those most responsive not feeder.
Monotropy support
SCHAFFER AND EMERSON
80% had specific attachment by 40 weeks.
Monotropy against
SCHAFFER AND EMERSON
Some babies formed multiple attachments at the same time.
Internal working model support
BAILEY
Social releasers support
BRAZELTON
KEY STUDY: Ainsworth’s strange situation (attachment types)
AINSWORTH
Procedure:
Findings:
Ainsworth support
BICK
94% agreement between observers on attachment type.
KEY STUDY: Ijzendoorn (cultural variations)
IJZENDOORN
Procedure:
Findings:
Other studies: Simonella (Italy)
SIMONELLA
Other studies: Jin (Korea)
JIN
Maternal deprivation support
BOWLBY
Procedure:
Findings:
Maternal deprivation against
LEWIS
Maternal deprivation support
GOLDFORB
Procedure:
Findings:
- IQ assessed aged 12, fostered = 96 and orphanage = 68 (IDD).
LEVY
Separating baby rats from mother for as little as a day had permanent effects on social development.
Critical period against
TWIN BOYS
KEY STUDY: Rutter’s English and Romanian Adoptee study (effects of institutionalisation)
RUTTER
Procedure:
Findings:
KEY STUDY: The Bucharest Early Intervention Project (effects of institutionalisation)
ZEANAH
Procedure:
Findings:
Internal working model support
BAILEY
ZIMMERMAN
No relationship between infant and adolescent attachment types.