Participant Information Sheet

Project Title: Cannabis use and decision making styles   -----   Date Information Sheet Produced: 15th May 2017   
Hello, we are researchers from Community and Alcohol Drug Services (CADS) and Waitemata District Health Board (WDHB) (Mark Evans) and Auckland University of Technology (Jim Phillips) and University of Auckland (Barry Hughes) and we are asking you to participate in a survey examining your cannabis use and decisional style. Your participation in this study is voluntary.

The survey considers how decisional style varies with cannabis use. This research may help us understand and treat addictive behaviours. The findings of this research will be used for a 4th year thesis, and may be used for academic presentations and publications.
The questionnaire is open to both users and non-users of cannabis over 16 years old. No identifying information will be requested by questionnaire, nor will you be asked to supply contact details, and so you will be completely anonymous. You don’t have to answer a question if you don’t want to, but appreciable omissions may mean your responses will be excluded from analysis.

All you need to do is complete the online questionnaire at your convenience and then your part is completed. Although you will be describing your use of substances that may be illegal in specific jurisdictions (i.e. anywhere except the Netherlands, Spain, South Africa, Uruguay and parts of the USA), your participation is anonymous. We will not be collecting your IP address or any information that could identify you. Nor will there be any form of follow-up. And the data will only be used for the purpose of understanding cannabis use and decision making. The data will be destroyed after six years.

The questionnaire will be available until a reasonable amount of questionnaires have been completed (around 400), and so the survey should be open for a while but not longer than several months (i.e. 30 September 2017). If you do not want to continue then you can just close the survey in the web browser. Clicking on the next link and completing the questionnaire, indicates your consent. Upon completion we will eventually put a summary of the overall results on this website.

What are the benefits?  By sharing your experiences about decision making, you can help research that could inform the treatment of people with substance dependencies.

What are the costs of participating in this research?  The only real cost will be about 15-20 minutes of your time.
While there are no known risks associated with this project, should you feel distressed after participating in this research, you can contact your GP, or view the range of information links provided at the end of this survey or:

in New Zealand contact Lifeline (, phone: 0800 543 354) or Youthline (, phone: 0800 37 66 33);

Any concerns regarding the nature of this project should be notified in the first instance to the Project Supervisor, James Phillips,, 921 9999 ext 6252.

Concerns regarding the conduct of the research should be notified to the Executive Secretary of AUTEC, Kate O’Connor, , 921 9999 ext 6038.

For further information about this research you can contact us at:
James Phillips,, 921 9999 ext 6252.
Mark Evans,

Approved by the Auckland University of Technology Ethics Committee on 16th May 2017, AUTEC Reference number 17/83.