Results for this study are based on telephone interviews conducted by SSRS, an independent research company, for Pew Research Center, among a nationally representative sample of 1,001 Hispanic respondents ages 18 and older. The interviews were conducted on cellular and landline telephones from Dec. 7, 2016, through Jan. 15, 2017.
For the full sample, a total of 545 respondents were U.S born (including Puerto Rico), and 456 were foreign born (excluding Puerto Rico). For results based on the total 1,001 sample, one can say with 95% confidence level that the error attributable to sampling is plus or minus 3.6 percentage points.
For this survey, SSRS used their Omnibus Survey (OS) – a dual-frame survey offered in English and Spanish which they conduct on a weekly basis. Every week, the OS produces a nationally representative sample of adults ages 18 and older.
During the field period, whenever a respondent on the OS was determined to be Hispanic and 18 years of age or older, that respondent was administered the module of questions which are analyzed in this report. The analytical sample is comprised of all of the respondents who were compiled over multiple weeks of the OS.
For the OS, SSRS used a staff of bilingual interviewers who, when contacting a household, were able to offer respondents the option of completing the survey in Spanish or English. A total of 302 respondents (30%) were surveyed in Spanish, and 699 respondents (70%) were interviewed in English. Any person ages 18 or older who said they were of Hispanic origin or descent was eligible to complete the survey.
The OS employs a dual-frame bilingual landline/cellular telephone survey design. It includes a fully replicated, single-stage, random-digit dialing sample of landline telephone households, as well as randomly generated cell numbers. The landline sampling frame yielded 212 completed Hispanic interviews, and the cellphone sampling frame yielded 789 interviews.1
- An adjustment was made for all persons found to possess both a landline and a cell phone, as they were more likely to be sampled than were respondents who possessed only one phone type. This adjustment also took into account the different sampling rate in the landline and cellphone samples.
- An additional adjustment was made to account for the number of phones within the household that are actually answered by the respondent or another member of the household.
- The sample was corrected for within-household selection in landline interviews, which depended upon the number of Hispanic adults living in the household.
- The data were put through a post-stratification sample balancing routine. The post-stratification weighting utilized estimates of the U.S. adult population based on the U.S. Census Bureau’s 2015 American Community Survey, on gender by age, gender by Census region, education, race/ethnicity, Hispanic nativity and marital status. The data were also weighted by population density from the 2010 census and phone usage estimates (i.e., cellphone only, landline only, both) from the January to June 2015 Center for Disease Control’s National Health Interview Survey.
Pew Research Center undertakes all polling activity, including calls to mobile telephone numbers, in compliance with the Telephone Consumer Protection Act and other applicable laws.
