Blattler et al. (2002) Evaluation

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+ The sample of 266 was high so findinfs should be generalisable to heavily dependant poly-drug uses in Switzerland.

- However findings are culture bind to Switzerland as it may not be generalisable to those from other cultures as they may be ethnocentric.


+ Independent researches condicted the interviews and alaylised the findings to ensure no researcher bias, therefore subjectiviy should be minimal.

+ The interviews were structured and used the same fixed questions so another researcher could repete the investigation.


+ It shows how appropriate programms…


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