This report is based on the findings of a daily tracking survey on Americans' use of the internet. Unless otherwise noted, the results in this report are based on data from telephone interviews conducted by Princeton Survey Research International between August 18 to September 14, 2009, among a sample of 2,253 adults, 18 and older. The survey was conducted on landline and cell phones. Interviews were conducted in both English (n=2,179) and Spanish (n=74). For results based on the total sample, one can say with 95% confidence that the error attributable to sampling and other random effects is plus or minus 2.3 percentage points. For results based on internet users (n=1,698), the margin of sampling error is plus or minus 2.7 percentage points. In addition to sampling error, question wording and practical difficulties in conducting telephone surveys may introduce some error or bias into the findings of opinion polls. The response rate to the survey was 15.6%.
September Tracking Survey 2009
Princeton Survey Research Associates International for the Pew Internet & American Life Project
Sample: n= 2,253 national adults, age 18 and older, including 560 cell phone interviews
Interviewing dates: 08.18.09 – 09.14.09
- Margin of error is plus or minus 2 percentage points for results based on Total [n=2,253]
- Margin of error is plus or minus 3 percentage points for results based on internet users [n=1,698]
Q6a Do you use the internet, at least occasionally?
Q6b Do you send or receive email, at least occasionally?
WEB1 Please tell me if you ever use the internet to do any of the following things. Do you ever use the internet to.../Did you happen to do this yesterday, or not?
Based on all internet users [N=1,698]
Use a social networking site like MySpace, Facebook or LinkedIn.com
Use Twitter or another service to share updates about yourself or to see updates about others
For more information on survey design, please see: The Twitter Question