Articles and reports: 12-001-X197700254830Description: The distribution of questionnaires to Canadian residents returning by land from the U.S. has been substantially modified, in an effort to improve sample yield at minimal additional cost. For each border crossing ("port") involved, a systematic sample of multi-day distribution stints has been selected. The sample selection method is described, the constraints which determined it are discussed, and some preliminary data on the method’s effectiveness are presented. Issue Number: 1977002Author(s): Gough, J.H.; Ghangurde, P.D.Main Product:Survey Methodology
