Term
What was the aim of Canter et al's study? |
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Definition
To test the reliability of organised/disorganised typologies |
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Term
What was Canter et al's methodology? |
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Definition
A content analysis applying multi-dimensional scaling to 100 cases from accounts of serial killers in the USA |
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Term
Which type of crime scene was indentified the most in Canter et al's study? |
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Definition
Twice as many disorganised as organised crime scenes were identified suggesting that disorganised offenders are more common, or just easier to indentify |
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Term
Which crime scene behaviours co-occured in organised typologies in Canter et al's study? |
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Definition
The body was concealed
Occurance of sexual activity |
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Term
In Canter's study, which behaviours occured in more than 2/3 of disorganised cases? |
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Definition
Only sex acts and vaginal rape; most of the other crime-scene behaviours co-occur regulary in less than half the crimes in which they happen |
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Term
What did Canter conclude? |
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Definition
There are not two types of serial killers as each crime scene has an organised element to it
The distinctions between killers may be a function of the different ways in which they may exhibit disorganised aspects of their activities
A better way is to look for personality differences between offenders |
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Term
What was the aim of Canter and Heritage's study? |
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Definition
To identify a behaviour pattern from similarities between offences |
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Term
What was the methodology of Canter and Heritage's study? |
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Definition
Smallest-space analysis of 66 sexual offences committed by 27 offenders conducted to find 33 offence variables that were clearly linked to a potential behaviour characteristic |
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Term
In Canter and Heritage's study, what were the 5 variables found to be cental to the 66 cases of sexual assult? |
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Definition
vaginal intercourse
no reaction to the victim
impersonal language
suprise attack
victim's clothing disturbed |
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Term
What were the conclusions of Canter and Heritage's study? |
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Definition
All 5 aspects contribute to sexual offences, but in different patterns for different individuals, leading to being able to establish whether two or more offences were committed by the same person, as well as an understanding of how an offender's behaviour changes over a series of offences |
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