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[A PDF copy of this study is available here. - Adobe Acrobat or Reader required]
American Religious Identification Survey
METHODOLOGY [note 4]
The American Religious Identification Survey (ARIS) 2001 was based on a random digit-dialed telephone survey of 50,281 American residential households in the continental U.S.A (48 states). The methodology largely replicates the widely reported and pioneering 1990 National Survey of Religious Identification (NSRI) carried out at the Graduate Center of the City University of New York. ARIS 2001 thus provides a unique time series of information concerning the religious identification choices of American adults.
The data were collected over a 17-week period, from February to June 2001 at the rate of about 3,000 completed interviews a week by ICR/CENTRIS Survey Research Group of Media, PA as part of their national telephone omnibus market research (EXCEL/ACCESS) surveys. The primary question of the interview was: What is your religion, if any? The religion of the spouse/partner was also asked. If the initial answer was 'Protestant' or 'Christian' further questions were asked to probe which particular denomination.
Notes:
4 For a more detailed discussion of the survey methodology, please see Appendix 1.
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