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The Effect of Survey Follow-up on Nonresponse Bias: Joint Canada/United States Survey of Health, 2002-03

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Abstract:

Response rates for random-digit-dial (RDD) telephone surveys continue to decline. Yet several studies suggest that nonresponse bias remains constant for response rates in the range of 40% - 70% (e.g., Curtin et al., 2000; Keeter et al., 2000). The 2002-2003 Joint Canada/United States Survey of Health (JCUSH) provides another example of how nonresponse bias remained constant despite efforts to increase response rates.

JCUSH was conducted jointly by Statistics Canada and by the National Center for Health Statistics of the U.S. Centers for Disease Control and Prevention. This RDD survey was designed to collect data regarding health status and access to health care for both Canadian and U.S. residents, using comparable procedures. Toward this end, interviews for both populations were conducted from Statistics Canada’s regional offices. After 5 months of data collection (November 2002 - March 2003), the Canadian response rate was 66%, relative to a U.S. response rate of 45.3%. To achieve greater response rates for the U.S. sample, additional telephone calls and refusal conversion attempts were conducted in April and June 2003. The final U.S. response rate (AAPOR RR4) was 50.2%.

Sampling weights for U.S. data collected prior to March 31st were produced, and resulting estimates for key health indicators were compared with the final weighted survey estimates and with estimates from the 2002 U.S. National Health Interview Survey. (The NHIS estimates were considered the “gold standard” for analyses of bias.) Similar comparisons were conducted for interviews completed with no more than 10 dials (RR4 = 37.0%), interviews completed with no more than 15 dials (RR4 = 43.3%), and interviews completed without refusal conversion efforts (RR4 = 41.8%). Nonresponse bias was constant for nearly all key health status and health care access measures.

Author's Keywords:

Nonresponse, survey error, international surveys
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Association:
Name: American Association For Public Opinion Association
URL:
http://www.aapor.org


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MLA Citation:

Blumberg, Stephen., Davis, Karen., Khare, Meena . and Martinez, Michael. "The Effect of Survey Follow-up on Nonresponse Bias: Joint Canada/United States Survey of Health, 2002-03" Paper presented at the annual meeting of the American Association For Public Opinion Association, Fontainebleau Resort, Miami Beach, FL, <Not Available>. 2009-05-25 <http://www.allacademic.com/meta/p16845_index.html>

APA Citation:

Blumberg, S. , Davis, K. , Khare, M. and Martinez, M. "The Effect of Survey Follow-up on Nonresponse Bias: Joint Canada/United States Survey of Health, 2002-03" Paper presented at the annual meeting of the American Association For Public Opinion Association, Fontainebleau Resort, Miami Beach, FL <Not Available>. 2009-05-25 from http://www.allacademic.com/meta/p16845_index.html

Publication Type: Paper/Poster Proposal
Abstract: Response rates for random-digit-dial (RDD) telephone surveys continue to decline. Yet several studies suggest that nonresponse bias remains constant for response rates in the range of 40% - 70% (e.g., Curtin et al., 2000; Keeter et al., 2000). The 2002-2003 Joint Canada/United States Survey of Health (JCUSH) provides another example of how nonresponse bias remained constant despite efforts to increase response rates.

JCUSH was conducted jointly by Statistics Canada and by the National Center for Health Statistics of the U.S. Centers for Disease Control and Prevention. This RDD survey was designed to collect data regarding health status and access to health care for both Canadian and U.S. residents, using comparable procedures. Toward this end, interviews for both populations were conducted from Statistics Canada’s regional offices. After 5 months of data collection (November 2002 - March 2003), the Canadian response rate was 66%, relative to a U.S. response rate of 45.3%. To achieve greater response rates for the U.S. sample, additional telephone calls and refusal conversion attempts were conducted in April and June 2003. The final U.S. response rate (AAPOR RR4) was 50.2%.

Sampling weights for U.S. data collected prior to March 31st were produced, and resulting estimates for key health indicators were compared with the final weighted survey estimates and with estimates from the 2002 U.S. National Health Interview Survey. (The NHIS estimates were considered the “gold standard” for analyses of bias.) Similar comparisons were conducted for interviews completed with no more than 10 dials (RR4 = 37.0%), interviews completed with no more than 15 dials (RR4 = 43.3%), and interviews completed without refusal conversion efforts (RR4 = 41.8%). Nonresponse bias was constant for nearly all key health status and health care access measures.

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