A National Sample Design

Abstract
The construction of national survey samples in Canada involves a number of theoretical and practical problems that range well beyond purely statistical considerations. Sample sizes for instance will tend to be large in comparison with those employed in many other nations not for greater accuracy but primarily because of the sheer diversity and geographical dispersion of the Canadian population. Likewise, the high cost of survey research at the national level in Canada virtually dictates that substantial efforts be made to achieve an “optimum” design for any single study. The purpose of this note therefore is to outline in brief the several considerations which underlay the design of a national sample for the post-election survey which will be carried out under our direction following the federal election of July 1974. It is offered as a commentary on the steps that were taken to provide a sample design consistent with the research focus of the project. The design has a number of important implications for both primary and secondary analysis of what will be the third national election study to be carried out in Canada. Each of these studies has followed particular theoretical interests, in all cases having important implications for potential use of the data set by other analysts.

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