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Substance dependence assessment / outcome evaluation questionnaire. Available in pencil-and-paper self-administered and interview formats. The LDQ measures substance dependence. The instrument is capable of measuring change in dependence and can therefore be...

The Personal Drug Use Questionnaire is a 19 items self-administered questionnaire and its primary use is to assess readiness for change in drug users. These instruments (SOCRATES, in its different forms) can...