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589 Annals Am. Acad. Pol. & Soc. Sci. 6 (2003)

handle is hein.cow/anamacp0589 and id is 1 raw text is: PREFACE
Misleading
Evidence and
Evidence-Led
Policy:
Making Social
Science More
Experimental
By
LAWRENCE W. SHERMAN

Increasing demands by government for evidence-led
policy raise the risk that research evidence will mislead
government rather than leading to an unbiased conclu-
sion. The need for unbiased research conclusions has
never been greater, yet few consumers of research
understand the statistical biases with which science
must always struggle. This article introduces the vol-
ume's discussion of those issues with an explanation of
the major threats of bias in social science research and a
map of the differing scientific opinions on how to deal
with those threats. The thesis of the volume is that many
of these threats could be reduced by making social sci-
ence more experimental. The fact that even experimen-
tal evidence contains threats of bias does not alter that
claim but merely suggests another: that educated con-
sumers of social science may be the best defense against
misleading evidence of all kinds.
The political fault lines of twenty-first-
century social science resemble a map of
Reformation Europe: one big division, with
countless subdivisions, around obscure issues
that inflame great passions. The big division
today is between social scientists who define
their client as public policy makers-includ-
ing voters-versus those who do not. Further
divisions abound on each side of this chasm,
none of which are consistent with the conven-
tional boundaries of Left versus Right ideologi-
cal camps. Political debates increasingly feature
discussion of evidence of the consequences of
public-and especially domestic-policy
choices. Whether such evidence leads or mis-
leads policy decisions may depend on intelligent
consumers understanding the logical distinc-
tions rather than ideological divisions in the
methods and epistemologies of contemporary
social science.
This volume offers partial guidance to citi-
zens and officials in pursuit of evidence-led
Lawrence W Sherman is the Albert M. Greenfield Pro-
fessor of Human Relations at the University of Pennsyl-
vania, where he is also director of the Fels Institute of
Government and its Jerry Lee Center of Criminology.
His research focuses on causes a nde ff ects of fgovernmen-
tal and civil society strategies to obtain public conpli-
ance with law.
DOI: 10.1177/0002716203256266

ANNALS, AAPSS, 589, September 2003

6

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