Chapter 11
In the six preceding chapters, we have used the results of survey research to
describe the origins of opinions on political issues, to discuss the public’s orientation
toward the political system, and to examine public opinion on social-welfare,
racial, cultural, and foreign policy issues in an attempt to describe the American
mind. This chapter explores some of the challenges that face survey researchers and
identifies a number of factors that should be considered in deciding how much
confidence to place in the findings reported in a public opinion survey.
As part of its special 50th issue, the editors of The Public Perspective (1998b:
86–94) asked nine senior survey practitioners to write about ‘‘the greatest challenges,
or problems, now confronting public opinion research in the U.S.’’ Although
each of these researchers cited a different aspect of the survey profession, the theme
running throughout these articles addressed the reliability and trustworthiness of
polls. While the specific challenges identified included the quality of data collection,
response rates, interpreting results appropriately, and reporting them
better, they all touched on the need to produce valid data. As Newport (1998: 87)
noted, ‘‘the reliance on survey results to guide the ship of state necessitates that
polls be trustworthy and reliable when they are first published.’’ In order for
public opinion data to be trustworthy, they must be reliable, producing consistent
results, and valid, measuring what they intend to measure.
Even though it is somewhat ironic to attempt to measure the public’s opinion
about polls using data from a public opinion poll, previous research has shown
that while Americans have some reservations about poll results, they generally
view surveys in a positive light (Goyder, 1986; Kohut, 1986; Roper, 1986; Dran
and Hildreth, 1995).
Prior investigations of this topic have shown that the public generally believes
that polls interview typical, representative people; are honest and accurate; work
for the interests of the general public; and are an enjoyable and satisfactory
experience (Roper, 1986: 10–13). Later research, such as that of Dran and Hildreth
(1995; 1997), found a more mixed view of public opinion on the polls, with less
than half of the public expressing confidence in their accuracy. A 1996 survey by
the Gallup Organization found an increase in the number of people who pay
attention to poll results. It also found that two-thirds of the public has faith in the
accuracy of surveys. In addition, almost three-fourths of their respondents said
that the country would be better off if the nation’s leaders followed public
opinion polls more closely, 87% felt polls are a ‘‘good thing’’ for the country, and
68% believed that polls work for the best interests of the general public (Gallup
and Moore, 1996: 51–52). By 1999, however, only 38% of respondents said they
had a good deal or fair amount of trust in what they saw or heard in public opinion
polls, 52% felt that the country would be better off if less attention were paid to
polls, and 54% believed that political officeholders and public officials paid too
much attention to polls (Gallup Report, 1999).
The Council for Marketing and Opinion Research (CMOR) periodically
conducts studies that examine the public’s image of surveys. These studies have
also found a mix of positives and negatives in citizen attitudes. On the positive
side, CMOR’s studies have shown the public to believe that the survey research
industry serves a useful purpose, that responding to surveys is in their best interest,
and that polls and surveys are useful in providing government officials with an
understanding of how the public feels about important issues. On the negative
side, the public believes that there are too many polls on subjects of little value, is
skeptical of results reported in surveys, and does not understand how the small
number of people interviewed in the typical survey can represent the entire
population. The most recent CMOR study, conducted in 2003, found that positive
perceptions of surveys were declining and negative perceptions were increasing.
Although the public still feels that participating in a poll is a pleasant experience
and generally finds the subject matter of polls interesting, there has been a marked
increase in public concern over the issue of privacy. A higher percentage of
the public now feels that polls are an invasion of privacy and a large majority does
not believe that organizations that conduct polls and surveys can be trusted to
protect their privacy rights. While survey researchers diligently protect the
confidentiality of respondents, the industry rules related to privacy issues are not
being communicated clearly or are not being understood by the public (Council
for Marketing and Opinion Research: 2003).
In 2001, the Henry J. Kaiser Family Foundation commissioned a large-scale
study ‘‘to explore Americans’ opinions about public opinion polling, to see whether
polls are regarded as an effective instrument for expressing the people’s will
to leaders in government’’ (Brodie, Parmalee, Brackett, and Altman, 2001). The
results of this study were also a mix of good and bad news for survey researchers.
Americans overwhelmingly believed that the will of the majority should influence
the decisions of government officials and felt that public opinion polls are a good
way for public policy makers to learn what people think. Moreover, three-fourths
of the public thought that decision makers should pay a great deal or fair amount
of attention to public opinion polls in considering important issues. On the
negative side, ‘‘majorities of the public think that polls are inaccurate, have inherent
limitations that prevent them from communicating the public’s views, and
are subject to manipulation. While half believe that they are based on sound scientific
practices, half disagree or are not sure about the polling process’’ (Brodie, Parmalee,
Brackett, and Altman, 2001: 13). These results are now five years old, and factors
such as the increased difficulty in gaining respondent cooperation in all surveys
and results such as those from the CMOR study would lead one to suspect that
this mix of good and bad news would be tilted more in the negative direction if
this study were repeated today.
There is some skepticism in the American mind about how survey data are
collected and how such information is used and reported. In recent years, increasing
concern over the confidentiality of information provided has contributed
to a decline in the public’s view of surveys. Despite the general confidence that the
public has in polls as a mechanism for expressing their views, a number of factors
can lead to errors in the way survey data are collected, interpreted, or reported
that might cause the public to lose even more faith in the polling process. In the
remainder of the chapter we examine several of these elements, including pseudopolls,
technological developments, and respondent factors.