Blatter et al (2002) Evaluation

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  • Blatter et al (2002) Evaluation
    • Strengths
      • Participants became more honest and the majority had reduced contact to the drug/sex scene so they had personal benefit. The prescription of drugs also broke all the user-dealer contact making re-use less likely
      • High ethical standards which as important as drug users are venerable they all gave informed consent and the study was approved by the national medical ethics committee
      • The cross checking of urine samples and self report data meant the reliability of the participants could  be tested and found them to be more honest
      • The study demonstrated that giving support can assisted long term drug users to reduce use and undesirable activities
      • High ecological validity as participants experienced normal settings etc
    • Weaknesses
      • Some users may have joined for the free drugs and no intention of reducing cocaine use, so was set to be anomalies in the results
      • The urine test were regular so users could figure out when to stop taking drugs in order to pass the test
      • Hard to generalise tp many other drug users as these were long term, heavy dependent and with psychiatric problems
      • Low in validity due to being hard to define cause and effect relationships in the changed of behaviour. However all the participant's changes were consistent suggesting the program has some effect


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