This study was conducted by Leger Marketing through telephone interviews among a representative sample of 1,500 English- or French-speaking Canadians, 18 years of age or older.
The interviews were conducted from our Montreal call centre from December 6 to December 11, 2005. Up to ten call-backs were made in the case of non-response.
Using data from Statistics Canada, the results were weighted according to gender, region, and language spoken at home to ensure a sample representative of the entire Canadian adult population. In the end, the maximum margin of error obtained for a sample of 1,500 respondents is ± 2.5%, 19 times out of 20.