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This opinion survey was conducted by Voter Roll Call, by telephone,
in the voice of a professional announcer. Respondent households were
selected at random, using Random Digit Dialed (RDD) sample provided by
Survey Sampling, of Fairfield CT. All respondents heard the questions
asked identically. Within the report, you will find: the geography that
was surveyed; the date(s) interviews were conducted and organization
that commissioned the research. The number of respondents who answered
each question and the margin of sampling error for each question are
provided. Where necessary, responses were weighted according to age,
gender, ethnic origin, geographical area and number of adults and
number of voice telephone lines in the household, so that the sample
would reflect the actual demographic proportions in the population,
using most recent U.S. Census estimates. In theory, with the stated
sample size, one can say with 95% certainty that the results would not
vary by more than the stated margin of sampling error, in one direction
or the other, had the entire universe of respondents been interviewed
with complete accuracy. There are other possible sources of error in
all surveys that may be more serious than theoretical calculations of
sampling error. These include refusals to be interviewed, question
wording and question order, weighting by demographic control data and
the manner in which respondents are filtered (such as, determining who
is a likely voter). It is difficult to quantify the errors that may
result from these factors. Fieldwork for this survey was done by Voter
Roll Call of Clifton, NJ.
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