Questionnaire No. 3

Prior to the 3rd questionnaire

About 3 years separated the second from the third questionnaire. 

During these years the participants were contacted on several occasions in order to update their contact information. This allowed us to stay in touch with them and to send them a little something for their birhtday. 

The 3rd questionnaire

This stage consisted in filling in another questionnaire online (a hard copy could be sent by post if wished) during about 45 - 60 minutes.

This questionnaire was very similar to the previous ones. It also was about the participants' socioprofessional and family background, their consumption of alcohol, cannabis and other drugs, as well as their personality and behavioral addictions like, for example, gambling.

The participation was rewarded with a gift voucher of CHF 50.-.

Participants were invited to fill in this questionnaire by email. In this email, they found a personal link to the online questionnaire. Those who prefered to fill in a hard copy could get it by post with a postage prepaid envelope.

Take a look at the questionnaire No. 3