Quiz finished

You score: {{ total() }}

Here are the explanations of the scores:

SDS: Interpretation of Scores

The higher the score the more likely presence of psychological dependence.

Gossop, M., Darke, S., Griffiths, P., Hando, J., Powis, B., Hall, W. & Strang, J. 1995, ‘The Severity of Dependence Scale (SDS): Psychometric Properties of the SDS in English and Australian Samples of Heroin, Cocaine and Amphetamine Users’, Addiction, vol. 90, pp. 607– 614.