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Analysis

Health research among hard-to-reach people: six degrees of sampling

Mary Aglipay, John L. Wylie and Ann M. Jolly
CMAJ October 20, 2015 187 (15) 1145-1149; DOI: https://doi.org/10.1503/cmaj.141076
Mary Aglipay
Department of Epidemiology and Community Medicine (Aglipay, Jolly), University of Ottawa, Ottawa, Ont.; Cadham Provincial Laboratory (Wylie), Government of Manitoba, Winnipeg, Man.; Department of Community Health (Wylie), University of Manitoba. Winnipeg, Man.
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John L. Wylie
Department of Epidemiology and Community Medicine (Aglipay, Jolly), University of Ottawa, Ottawa, Ont.; Cadham Provincial Laboratory (Wylie), Government of Manitoba, Winnipeg, Man.; Department of Community Health (Wylie), University of Manitoba. Winnipeg, Man.
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Ann M. Jolly
Department of Epidemiology and Community Medicine (Aglipay, Jolly), University of Ottawa, Ottawa, Ont.; Cadham Provincial Laboratory (Wylie), Government of Manitoba, Winnipeg, Man.; Department of Community Health (Wylie), University of Manitoba. Winnipeg, Man.
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  • For correspondence: ajolly@uottawa.ca
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    Figure 1:

    A group of individuals represented by circles, some of whom have been randomly selected as a representative sample with equal probability from a known list of the population.

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    Figure 2:

    A network of friends represented by circles stemming from one individual with five friends, and their friends, up to four generations. Blue circles represent those selected and recruited by each other in a study using respondent-driven sampling methods.

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In this issue

Canadian Medical Association Journal: 187 (15)
CMAJ
Vol. 187, Issue 15
20 Oct 2015
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Health research among hard-to-reach people: six degrees of sampling
Mary Aglipay, John L. Wylie, Ann M. Jolly
CMAJ Oct 2015, 187 (15) 1145-1149; DOI: 10.1503/cmaj.141076

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Health research among hard-to-reach people: six degrees of sampling
Mary Aglipay, John L. Wylie, Ann M. Jolly
CMAJ Oct 2015, 187 (15) 1145-1149; DOI: 10.1503/cmaj.141076
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  • Article
    • Types of sampling
    • What is the theory behind respondent-driven sampling?
    • How well does respondent-driven sampling work?
    • How have Canadian researchers sampled hard-to-reach populations?
    • How are data from studies that use respondent-driven sampling analyzed?
    • The future of respondent-driven sampling
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