DQ30 [Decima Quarterly 30 June 1987]

The Decima Quarterly is a survey of public attitudes of Canadians on a wide range of matters related to public affairs, which was conducted every three months from the first quarter of 1980 until the first quarter of 1995. Each survey involves interviews of some 150+ questions with a random sample size of 1,500 Canadian citizens.

迪西玛季度调查（Decima Quarterly）是一项针对加拿大人在各类公共事务相关议题上的公众态度开展的抽样调查，该调查自1980年第一季度至1995年第一季度，每季度开展一次。每次调查均面向1500名加拿大公民的随机抽样样本，进行涵盖约150余个问题的访谈。