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Unit 3 Psychology Revision Guide
(Forensic Psychology)

Offending behaviour:
- Problems in defining crime, measuring crimes including official statistics and alternatives.
- Offender profiling, including typology and geographical approaches.
- Theories of offending:
Early biological approaches: atavistic form and somatotype theories.
Biological explanations including genetic transmission.
Social learning…

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Self-report method: These involve asking offenders about their offending. These surveys focus on
people previously convicted or at a risk of offending. The 2006 OCJS showed that alcohol was a key
factor of offending, the figures showed 27% of binge drinkers had offended in the past year.

Offender Profiling

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- Douglas et al (1992) suggested a third category of mixed offenders should be
- Jenkins (1988) suggested 2 types of serial killers the respectable type and the
predictable type.
- Holmes and De Burger (1988) proposed 6 types that could be defined according to
the combination of 14…

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- Location needs to be understood in the context of the offender's behaviour at the
scene, the time of the crime and the victim. Combing geographical and
psychological data is necessary.
- Copson (1995): survey of 184, found profilers had very different approaches and
satisfaction depends on the individual profiler.…

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Ectomorph: thin, flat chest, delicate build, young appearance, tall, lightly muscled,
stoop-shouldered, and large brain. Traits: self-conscious, preference for privacy,
introverted, inhibited, socially anxious, artistic and mentally intense.
Mesomorph: Hard, muscular body, overly mature appearance, rectangular shaped, thick
skin and upright posture. Traits: adventurous, desire for power and dominance,

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- Dalgaard and Kringlen (1976): (Makes the Christiansen study reliable):
studied Norwegian twins and found a concordance rate of 26% for MZ and
15% DZ.
- If offending is genetic we would expect a high concordance rate in MZ twins
who share 100% identical genes than for DZ twins…

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- Although much is known about chromosomes and genetic disorders, no
single criminal gene has been identified.
Animal research has shown structures in the brain specifically the limbic system and
amygdala (controls emotional behaviour) as responsible for aggression.
This response usually requires an environmental stimulus.
Different areas of the…

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The deviant superego: The same sex parent whom the child identifies with in the
phallic stage is immoral. The child internalises a deviant moral code, the person's
view of right and wrong are at odds with the rest of society.
The over-harsh superego: The child's superego is excessively punitive and…

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Bandura claimed the main influence on an individual's behaviour are from
observation of role models.
According to SLT behaviour is learn through a processes of observation, imitation,
identification, and reinforcement.
Vicarious reinforcement is an indirect form of reinforcement and involves learning by
others rather than directly receiving rewards or punishment…




these notes are perfect! thanks for uploading 



Theses notes are pefectly fabulous, thank you!!!!

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