Reinventing integration: Muslims in the west

All surveys were designed and funded entirely by The Gallup Organization. Surveys of Muslims in London, Paris, and Berlin were all conducted between November 2006 and February 2007. In London and Paris, probability samples were used in neighborhoods where Muslim penetration was 5 percent to 10 percent or more. All interviews in London and Paris were conducted face-to-face in respondents' homes. In Berlin, random digit dialing was used with a sample that used first names and family names to increase the probability of reaching a Muslim household. Sample sizes were 512 in London, 502 in Paris, and 504 in Berlin. The associated maximum sampling error is ±5 percentage points for each survey. General public surveys were all conducted between December 2006 and January 2007, using random digit dialing in each country to reach representative sample of the total 15 and older adult population. Sample sizes were 1,204 in the United Kingdom, 1,220 in France, and 1,221 in Germany. The associated maximum sampling error is ±3 percentage points for each survey.