| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1075253 | International Journal of Drug Policy | 2015 | 4 Pages |
Abstract
•We compared cannabis growers from online purposive and probability survey modes.•Age, education, employment and some drug use indicators were similar.•Digital methods increase the representativeness of research with hidden populations.•Web samples should be compared with probability samples to assess external validity.
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Authors
Monica J. Barratt, Simon Lenton,