Privation - A lack of attachment. Relatively small number of children experience privation. It could be the result of severe neglect and growing up in institutional care.
Genie (1977)
Events
• Found when she was 13 years old
• Kept strapped to a child's potty or a wire bed in an empty room
• Father punished her if she made a sound so she made virtually no noise
• Never achieved good social adjustment or language
• Moved from a lot of foster homes after found
The Czech Twins (1976)
Events
• Male identical twins - mother died giving birth
• Children went to a home for 11 months and then spent 6 months with their aunt
• Then went to father and step-mother
• Were not allowed out of the house and were kept in a closet or cellar
• Discovered at 7 years old, they could hardly walk
• Were placed in a hospital and then foster home
• Developed language quickly and now live as adults, well-adjusted and cognitively able
The reason for the different responses in the case studies may have been due to subsequent care or the Czech twins' company of each other opposed to Genie's isolation
Evaluation
+ High ecological validity because variables have occurred naturally
+ Produces qualitative data which is rich in detail
- Low population validity because it is only one individual or group
- Low reliability because the studies can't be replicated due to ethical issues
- Retrospective data - key points could be missed
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