Country: United States
Survey Organization: Social Science Research Solutions
Field Dates: July 15 to August 9, 2015
Sample: Nationally representative sample of 2,762 adults ages 19 to 64
Sample Size: Overall 1,060 interviews were conducted with respondents on landline telephones and 1,702 interviews were conducted on cellular phones, including 1,116 with respondents who live in households with no landline telephone access.
Interview Method: The survey consisted of a 15-minute telephone interviews in English or Spanish.
This is the second wave of the Affordability Tracking Survey. The first wave was conducted from September 10 to October 5, 2014. The analysis in this issue brief focuses on 1,687 adults who were insured continuously for the prior 12 months with private coverage, either through an employer, the Affordable Care Act’s marketplaces, or the individual market. The majority of the sample comprises people in employer-based plans.
The data are weighted to adjust for the fact that not all survey respondents were selected with the same probabilities, the overlapping landline and cellular phone samples, and disproportionate nonresponse that might bias results. Data are weighted to the U.S. 19-to-64 adult population by age, race, gender, region, marital status, education, and population density, based on the U.S. Census Bureau’s 2014 March Supplement to the Current Population Survey and household telephone use using the CDC’s National Health Interview Survey. The resulting weighted sample is representative of the approximately 190.7 million U.S. adults ages 19 to 64.
The survey has an overall margin of sampling error of +/– 2.1 percentage points at the 95 percent confidence level. The landline portion of the survey achieved a 10 percent response rate and the cellular phone sample achieved a 5.5 percent response rate. The overall response rate was 6.9 percent.