Forensic Psychology [U11X] Flashcards
Lombroso’s Legacy
- Paradigm from moralistic discourse focus
- Introduced scientific theory to crime
- Suggested particular types commit crimes
- First form of offender profiling
DeLisi on the atavistic form
- Racist undertones
- Atavistic features found in lower classes and those of African descent
- Fits eugenic ideologies of the 19th century
- Subjective biases decrease validity
Goring on the atavistic form
- Contradictory evidence
- Compared 3000 offenders and non-offenders
- No evidence to support the atavistic form
- Did find a link between crime and low intelligence
- The offender cannot be physically distinguished
- Not a sub-species of man
Mednick et al. on genetic explanations
- Studied 13,000 adoptees
- Conviction rate of adoptees without convicted parents (Bio or Adopt) was 13.5%
- 20% when either bio parent was convicted
- 25% when both sets of parents did
- Supports diathesis stress model
Flaw with adoption studies
- Late adoptees exist
- Often maintain contact with bio parents
- Difficult to assess isolated impact of biology
- Suggests adoption studies are only useful with very early adoptions
Flaw with twin studies
- Studies assume similar environments between MZ and DZ
- MZ will experience even more similar treatment by parents
- This impacts behaviour
- Results can be a product of similar treatment, not genes
Kandel & Freed on neural explanations
- Research support
- Reviewed evidence of frontal lobe damage and antisocial behaviour
- Trends of impulsive behaviour, emotional instability and an inability to learn from mistakes
- Brain damage may be a causal factor
Farrington et al. & Rauch et al.
- APD correlate is complex
- Other factors contribute to disorder and offending
- Found males with high psychopathy scores to have been neglected and have convicted parents (Farrington)
- These experiences could cause neural differences
- Trauma can reduce activity in the frontal lobe (Rauch et al.)
Eysenck & Eysenck
- Compared EPQ scores
- 2017 male convicts and 2422 male non-offender controls
- In all age groups, offenders scored higher on E, N and P sections
Farrington et al.
- Meta analysis
- Offenders scored high in P, but not E or N
- EEG evidence of cortical arousal differences between introverts / extroverts is inconsistent
- Biological basis is doubtful
Bartol & Holanchock
- Studied Hispanic & African-American offenders
- 6 groups based on offences and offending history
- All groups scored lower on E than on non-offenders
- Due to culturally difference in samples
- Criminal personality is a culturally-relative concept
Moffitt
- Too simplistic
- Personality is a poor predictor of length of offending behaviour
- Difference between adolescent-limited and life-course-persisting criminality
- Persistent is due to a reciprocal process between personality and environment
- More complex picture than Eysenck
Palmer & Hollin
- Assessed moral reasoning in 126 convicted offenders and 332 non-offenders
- Done using the SRM-SF (11 moral questions. E.g. keeping a friend’s promise and not stealing)
- Offenders demonstrated less mature morals than control group
Harkins et al. on CBT
- CBT challenges irrational thoughts
- Offenders encouraged to face up to their actions and accept a less distorted view of their actions
- Outlines areas of irrationality to be targeted
- Studies suggest reduced minimalisation and denial in therapy is associated with low recidivism (Harkins et al.)
- Distortion explanations have practical value
Thornton and Reid & Howitt and Sheldon
- Financial crimes related to pre-conventional moral reasoning (T & R)
- Impulsive crimes not
- Morality only associated with crimes the offender believes they won’t be caught for
- Non-contact sex offenders used more cog. distortions than contact sex offenders (H & W)
- Criminal history correlated with high use of distortions
Stereotyping of DAT
- Stereotypes the impoverished as unavoidable offenders
- Pro-crime value exposure is sufficient to make someone an offender
- Ignores the exception to the rules
Explanative Power of DAT
- Accounts for offending in all of society
- Culture of burglary clustered in inner-city working class communities
- “White-Collar” crimes may be due to a deviant subculture/norms in middle classes
- High explanative power
DAT as a paradigm shift
- Shifts focus away from Lombroso’s biological
- Deviant environments & circumstances instead of deviant people
- Offers a realistic solution to offending, rather than punishment
Goreta on the superego
- Freudian analysis of 10 offenders
- All had disturbed superego formation
- All had unconscious guilt and a need for self-punishment
- This need manifests as a desire to commit wrongdoings
Kochanska et al. on the superego
- Contradictory evidence
- Expect punitive parenting to make guilty children
- Harsh discipline results in rebellious children with low feelings of guilt & self-criticism (Kochanska)
- Theory is unsupported
Hoffman on Gender Bias
- Women have weaker superego
- Females should be more prone to offending
- 20x more men in prison than women
- Females are more moral and slightly better at resisting temptation (Hoffman)
- Alpha bias at the heart of the theory
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Canter & Heritage on investigative psychology
- Analysed 66 sexual assault cases using smallest space analysis
- Several common behaviours, such as impersonal language and lack of a reaction
- Each individual had a characteristic pattern of these behaviours
- Supports idea of interpersonal coherence and identifying if crimes are committed by same person
- People are consistent, which backs IP
Offender profiling as imperfect
- Can only narrow suspects, not identify an offender
- Danger to sticking to profile
- Wrong man arrested for Rachel Nickell’s murder (Stabbed 47 times and sexually assaulted)
- Should be treated with caution to avoid wrong convictions
Lundrigan & Canter on Geographical Profiling
- Collated 120 US serial murder cases
- Smallest Space analysis revealed spatial consistency in the killers crimes
- Dump bodies in different directions, creating a centre of gravity and circle theory
- Base was at the pattern’s centre, reinforcing GP
Geographical Profiling with poor quality data
- Reliant on police data quality
- 75% of crimes go unreported
- Low recording accuracy extends to low GP accuracy
- Timing, age and experience of crime/offender are equally as important (Ainsworth)
- Doesn’t consistently lead to accurate conviction
Canter on offender categorisation
- Analysed 100 US murders by different serial killers
- Used smallest space analysis (Correlations between behaviour samples)
- Analysis used to assess 39 aspects of serial killings, like torture, restraint, cause of death
- Common subset of features matched FBI typologies for organised offender
Godwin on typology overlap
- Types aren’t mutually exclusive
- Difficult to classify killers (Godwin)
- Possibility of a trait mix
- E.g. High IQ and sexual competence but impulsive crime
- Typologies may be better as a continuum, not categories