Summary WJEC Level 3 Applied Certificate & Diploma Criminology: Study and Revision Guide - unit two, Criminological Theories
Summary WJEC Level 3 Applied Certificate & Diploma Criminology: Study and Revision Guide - unit two, Criminological Theories
Summary WJEC Level 3 Applied Certificate & Diploma Criminology: Study and Revision Guide - unit two, Criminological Theories
All for this textbook (8)
Written for
A/AS Level
WJEC
WJEC Level 3 Applied Diploma in CRIMINOLOGY
Unit 2
All documents for this subject (8)
Seller
Follow
rebeccat2635
Content preview
2.1
Biological theories of crime
Genetic theories
Definition = criminality is passed down from the parents through genes
Twin studies – Christiansen
Tested the theory that crime is genetic, as monozygotic twins are fertilized from the same egg, if one is criminal
the other should be too.
Christiansen study on twins in Denmark
- MZ – 52% concordance rate
- DZ – 22% concordance rate
Ishikawa and Raine study concluded
- MZ – 44%
- DZ – 21.6%
Adoption studies - Mednik et al
If a child is born to criminal parents but adopted at a young age to non-criminals in an affluent area, will they
still become criminal – nature v nurture debate
important to the study that a child was adopted soon after birth so they wouldn’t have had influences from
both sides
Mednik et al – study on 14,000 boys in Denmark, concluded boys are more likely to become criminal if their
parents are
- 20% concordance rate between adopted child + birth parent
- 12.7% concordance rate between adopted child + adoptive parent
This showed how criminality may be influenced more by genetics rather than your environment
, XYY study - Jacob et al
In 1965 Jacob et al claimed that men with an extra Y chromosome (XYY) have super male syndrome, making
them more aggressive and violent than other males.
A study showed that the ratio of men in prison with XYY was:
15:1000 compared to
1:1000 in the general public
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller rebeccat2635. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.25. You're not tied to anything after your purchase.
