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    Appendix B: Survey methodology

    Muslim Americans constitute a population that is rare, dispersed and diverse. It includes many recent immigrants from multiple countries with different native languages who may have difficulty completing a public opinion survey in English. The intense attention paid to Muslims in the aftermath of terrorist attacks in the U.S. and abroad, as well as the […]

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    Appendix B: Mode effects as a source of error in political surveys

    Research suggests that the social interaction inherent in a telephone or in-person interview may exert subtle pressures on respondents that affect how they answer questions. The ways respondents change in response to these pressures is the basis of “mode studies” in social science. For example, respondents may feel a need to present themselves in a […]

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    Appendix C: Multiple comparisons adjustment

    This study measured the effect of survey mode of administration on respondents’ answer choices across 27 different questions about political figures, policy preferences and core political values. Looking at such a broad range of questions provides a great deal of insight into the kinds of items that could be adversely affected by the choice of […]