http://www.jstreet.org/page/media-advisory-new-survey-american-jewish-community
Methodology
Gerstein | Agne Strategic Communications designed the questionnaire for this survey of 800 self-identified adult American Jews, conducted June 29 - July 3, 2008. The survey has a margin of error of +/- 3.5 percent; the margin of error in the split samples is +/- 4.9 percent. Gerstein | Agne contracted the research company YouGovPolimetrix to administer the survey by email invitation to its web-based panel, which is regularly updated and consists of 1.2 million Americans.
Conducting reliable and affordable surveys of American Jews is a challenging task due to the small number of Jews as a proportion of the overall United States population. Advances in technology and sophisticated web-based panel techniques have greatly helped researchers seeking to gain a trustworthy understanding of small populations, such as American Jews, and web-based panels are a rapidly growing method across numerous audiences that are difficult to reach by traditional land line telephone surveys.
Methodology
Gerstein | Agne Strategic Communications designed the questionnaire for this survey of 800 self-identified adult American Jews, conducted June 29 - July 3, 2008. The survey has a margin of error of +/- 3.5 percent; the margin of error in the split samples is +/- 4.9 percent. Gerstein | Agne contracted the research company YouGovPolimetrix to administer the survey by email invitation to its web-based panel, which is regularly updated and consists of 1.2 million Americans.
Conducting reliable and affordable surveys of American Jews is a challenging task due to the small number of Jews as a proportion of the overall United States population. Advances in technology and sophisticated web-based panel techniques have greatly helped researchers seeking to gain a trustworthy understanding of small populations, such as American Jews, and web-based panels are a rapidly growing method across numerous audiences that are difficult to reach by traditional land line telephone surveys.
Quote from a_person:
While the numbers do sound about right IMO, it's still the responsibility of the poll to prove that it's not bogus and that it's using proper methodology...If of course the poll wants to be taken seriously. Polls that don't publish their methodologies usually have something to hide.