an application of the behaviourist approach to treatment - based on the principles of operant conditioning
aim is to replaceundesirable behaviours with more desirable ones through positive and/or negative reinforcement - part of rehabilitation
what is token economy?
a form of behavioural therapy where desirable behaviours are encouraged by the use of selective reinforcement
people are given rewards (tokens) when they demonstrate desirable behaviour
the tokens are secondary reinforcers and can be exchanged for primary reinforcers - privileges, food, cigarettes, gym time etc
what are operationalised target behaviours?
where a target behaviour is broken down into component parts, e.g. improved interaction with other prisoners would include 'speaking politely', 'do not touch another prisoner when passing them'.
each 'unit' of behaviour needs to be objective and measurable and agreed by all
what is a conjugal visit?
private visit with a legalspouse - may involve sexual intercourse
only available in US prisons
thought to reduce incidents of sexual and physical violence in prisons
what are behaviourist principles within token economies?
all human behaviour is learned - should be possible to encourage the unlearning of behaviour
token economies are based on the use of tokens (secondary reinforcers) which are given to offenders by prison staff once a desirable behaviour had been displayed
tokens can then be exchanged for rewards e.g. cigarettes - primary reinforcers - directly rewarding
how are token economies designed?
target behaviour is operationalised by breaking down into components e.g. improved interactions with other prisoners would include 'speaking politely'
each 'unit' of behaviour needs to be objective and measurable and agreed with prison staff and inmates
all should be aware of scoring system and how much each particular behaviour is 'worth'
aim is for positive reinforcement to outnumber punishment
important that staff are fullytrained in token economy system
aim is to standardise procedures so all staff are rewarding behaviours in the same way
why is Hobbs and Holt 1976 a key study in TE?
researched effectiveness of implementing a token economy programme in three small juvenile delinquent centres
also studied a centre with notreatment programmes as a control group
what was the procedures of Hobbs and Holt?
staff trained to identify target behaviours and trained in recording behaviours
tokens awarded for behaviours like obeying rules, doing chores etc
boys were told what behaviours could earn tokens for and how many token they had earned
tokens could be swappedimmediately for sweets or cigarettes, or saved for a larger reward later
what were the findings of Hobbs and Holt?
in those institutions where the token economy programmes were introduced, there was a significant increase in desired behaviours
1 - 66% to 91%
2 - 47% to 81%
3 - 73% to 94%
how does Hobbs and Holt have high validity and reliability?
high external validity - use of real inmates
use of control group - causation can be shown
use of standardised procedures allowed study to be accurately replicable - high reliability of study, results not too dissimilar
operationalisation of behaviours - accurately measuring percentage change in desirable behaviour which is what they intended to measure
how could Hobbs and Holts study be improved?
redo research on sample for female juvenile inmates, or of adult inmate to see if behaviour would change in the same way to improveexternal validity beyond boys in juvenile delinquent centres