crim
- Created by: ashfarmer456
- Created on: 09-02-23 09:19
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- Adoption Study
- Facts
- Similarities between adopted children and their biological and adoptive parents are compared.
- If similarity is greater with adoptive parent- environmental influence on crime.
- If greater similarity with biological parents, genetic influence on crime.
- 1.Claims
- Regardless of environment, children biologically predisposed to criminality.
- Crowe- criminality and aggression linked to genetics.
- Can separate nature/nurture influence by adoption studies.
- Comparing their behaviours to behaviours of biological and adopted parents.
- 2.Components
- Compared children of biological mother who had a criminal record, to children who.s biological mother didn't.
- If biological mother had criminal record, 50% of children had one by 18.
- In the control group, 5% of children had criminal record by 18.
- Suggesting, regardless of changed environment, children biologically predisposed to criminality.
- Compared children of biological mother who had a criminal record, to children who.s biological mother didn't.
- 3.Credibility
- Able to separate nature and nurture, findings are consistent with genetics being influence on crime.
- Results show big genetic link between biological mother crime and child's.
- Adoption studies- effective technique for assessing impact on genetic and environmental link.
- May not be criminality they inherited e.g. inherit alcoholism- link to criminal behaviour.
- Many adopted children not adopted at birth, life experiences prior to adoption may affect later development.
- Reductionist- doesn't take into account environmental factors.
- Deterministic.
- 4.Analysis
- Kenneth Bianichi- born to alcoholic mother who gave him away at 3 months old.
- Showed early signs of problems e.g. temper tantrums.
- Foster father died at 13, forced to go work and support family.
- Moved in with his cousin who was a bad influence on him.
- Kenneth Bianichi- born to alcoholic mother who gave him away at 3 months old.
- 5.Refuting Evidence
- Age of influence may mean they've already been influenced.
- Information about biological parent isn't always available.
- Adoption process not always random- children places with family or parents similar to biological.
- Doesn't take father's criminal background into account.
- Supporting Evidence
- Mednick et al(1994)
- Compared court convictions of 14,000 adoptees with biological and adoptive parents.
- Correlation between conviction of biological parent.
- No correlation of criminal links between adoptive parents and child.
- Although, this wasn't for serious crimes.
- Compared court convictions of 14,000 adoptees with biological and adoptive parents.
- Siblings adopted separately into different homes tended to be concorded for convictions.
- Especially if biological father also had a record of criminal behaviour.
- Mednick et al(1994)
- Facts
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