Cover Michigan Survey Methods

Cover Michigan Survey Methods

Cover Michigan Survey Methods

The survey data presented in CHRT’s Cover Michigan Survey briefs were produced from a series of survey questions added to the Michigan State University Institute for Public Policy and Social Research (IPPSR) quarterly State of the State Survey (SOSS). Conducted three to four times per year, SOSS is a public opinion telephone survey that includes a stratified random sample of Michigan adults aged 18 years and older. All surveys excluding Cover Michigan 2010 include cell phones. A full report of the IPPSR State of the State Survey methodology can be found at: http://ippsr.msu.edu/soss/

Cover Michigan Survey 2018: The survey was fielded between February and May 2018 and included a sample of 948 Michigan adults, with a 16.7 percent response rate. The margin of error for the entire sample was ±4.0 percent with design effects.

Cover Michigan Survey 2015: The survey was fielded between October and December 2015 and included a sample of 972 Michigan adults, with a 17.0 percent response rate. The margin of error for the entire sample was ±3.9 percent with design effects.

Cover Michigan Survey 2014: This survey was fielded between September and November 2014 and included a sample of 1,002 Michigan adults with a 20.2 percent response rate. The margin of error for the entire sample was ±3.9 percent with design effects.

Cover Michigan Survey 2012: This survey was fielded between August and October 2012 and included a sample of 1,018 Michigan adults, with a 31.6 percent response rate. The margin of error for the entire sample was ±6.5 percent with design effects.

Cover Michigan Survey 2010: This survey was fielded between October and December 2010 and included a sample of 1,000 Michigan adults, with a 35.6 percent response rate. The margin of error for the entire sample was +/-3.1 percent with design effects.

Demographic and socio-economic characteristics of the Cover Michigan Survey samples are described on the following web page: http://chrt.sites.uofmhosting.net/demographic-socio-economic-characteristics-cover-michigan-sample-surveys/

Analysis: For analytical purposes, survey data were weighted to adjust for the unequal probabilities of selection for each stratum of the survey sample (for example, region of the state, listed vs. unlisted telephones). Additionally, data were weighted to adjust for non-response based on age, gender, and race, according to population distributions from the American Community Survey data for survey years 2009-2013 and 2012-2016. Respondents who reported both Medicare and Medicaid coverage were considered Medicaid recipients for the purpose of this analysis. Results were analyzed using the most recent versions of SAS and SPSS software commercially available at the time of the publication of the brief. Statistical significance of bivariate relationships was tested using z tests, odds ratio tests, or chi-square tests. Unless otherwise noted, all results reported were statistically significant at the p < 0.05 level.

Cover Michigan Survey health policy briefs by topic

Health Care Access and Insurance Churning:

Satisfaction with Health Care Coverage:

Wellness and Prevention Programs: