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PARENT-OFFSPRING CONFLICT
AO2 (a contradiction)
AO1
Many younger children don't bother
Conflict before birth
to compete >> cooperative traits.
·Eclampsia- high blood pressure of mother >>
more nutrients to foetus
After birth
·Parents want to direct resources away from
older children to use for younger ones
Sibling rivalry
·Offspring want more than their fair share
·Parents want children to value siblings AO2(Real life application)
Strategy to cope with sibling rivalry:
·Steer siblings along different
AO2 (supportive research) developmental paths
First born= close to reproductive age ·Reduces competition
Last born= vulnerable
Andrews
·Survey of 1600 US adolescents
·Suicide attempts more common of middle children
·Suicidal behaviour may be an adaptive response to increase
parental investment
AO3 AO3
AO3
Survey: Large sample size:
US study:
+quick, relatively easy +increases reliability
-cultural bias
-demand characteristics
-difficult to generalise…read more

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