Centre for Policy on Ageing



Method and description of the Aging in Manitoba Project: a 20-year longitudinal study
Author(s)	Judith G Chipperfield, Betty Havens, Wendy D Doig
Journal title	Canadian Journal on Aging, vol 16, no 4, Winter 1997
Pages	pp 606-625
Keywords	Ageing process ; Research ; Longitudinal surveys ; Methodology ; Canada.
Annotation	The Aging in Manitoba (AIM) project is a Canadian longitudinal study of over 9,000 older people. Three independent cross-sectional samples (1971, 1976, 1983) were subsequently followed (1983-1984, 1990), producing cross-sectional and longitudinal data. The aim of this paper was to examine non-response over time and representativeness of the panel of AIM survivors. This involved analysis of non-response, calculations of completion/response rates, and comparisons of demographic variables across the AIM sample and the broader Manitoba and Canadian populations. Non-response was very low (4.6% in 1983-1984, 5% in 1990) and did not appear to be dependent on such factors as location, gender, education level, or nationality descent. The 95% completion rate compares favourably with other longitudinal studies, demonstrating the value of employing rigorous tracking procedures. These findings suggest that attempt to minimise bias and selective attrition in the AIM study have been successful. (AKM).
Accession Number	CPA-980720215 A
Classmark	BG: 3A: 3J: 3D: 7S
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...from the Ageinfo database published by Centre for Policy on Ageing.