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9 Disp. Resol. Mag. 20 (2002-2003)
Science of Influence

handle is hein.journals/disput9 and id is 28 raw text is: The Science of Influence

Using six principles of persuasion
to negotiate and mediate more effectively
By Robert B. Cialdini, Roselle L. Wissler
and Nicholas J. Schweitzer

Over the past several decades,
behavioral scientists have conducted
studies on the process of social influence
- the ways in which people can influence
others' attitudes and actions. Now a
substantial body of systematic research
demonstrates that certain interactions can
lead people to accept a proposal or
comply with a request that they might
otherwise reject.
This research has identified six
fundamental principles of influence.
These principles do not involve the
merits of the proposal or request itself,
but the way in which it is communicated.
In the pages that follow, we describe
the six basic principles of influence. In
addition, we offer suggestions for how
mediators and negotiators can harness
these  principles effectively  and
responsibly. The applicability of the
science of social influence to mediation
and negotiation is corroborated by the
overlap between the research outcomes
and the practices that have emerged as
successful in these settings.
Robert B. Cialdini is Regents'
Professor of Psychology at Arizona State
University and can be reached at
Robert. Cialdini@asu. edu.
Roselle L. Wissler is a research
fellow with the Arizona State University
College of Law's Lodestar Mediation
Clinic, and can be reached at
rwissler@ asu. edu.
Nicholas J. Schweitzer is a graduate
student in social psychology in the
Department of Psychology at Arizona State
University. He can be reached at
njs @asu. edu.
Dispute Resolution Magazine

I. The Principle of Liking
Although it may be fairly obvious
that people are more easily influenced by
those they like, social science research
on the topic can help us employ this
straightforward principle to become more
influential  in  our  professional
interactions. Research has uncovered
several factors that affect how much one
person will like another (e.g., physical
attractiveness, compliments    and
cooperative efforts). But one factor
stands out as the most powerful and the
easiest to implement: similarity.
In a simple but telling demonstration
of the effects of similarity on influence,
researchers mailed a set of surveys to
random individuals. These surveys were
accompanied by a cover letter, which for
some of the recipients was signed by a
researcher with a name designed to be
similar to the recipient's (e.g., Patty James
might receive a letter signed Patricia
Jones). Although identical in all other
aspects, the surveys sent with similar
names were completed twice as often as
the others.
If something as trivial as similarity of
names can affect compliance with a
request, imagine how much more
compelling a meaningful commonality,
such as a shared interest, group

membership, or goal, might be. Thus, a
mediator or negotiator should spend the
time necessary to locate such parallels
among relevant parties and bring them to
the surface.
Applications
To emphasize the parties' similarities,
negotiators and mediators can point out
the interests the parties have in common.
For example, in a contract case, a
negotiator could mention that both
parties have expressed an interest in
maintaining their business relationship,
minimizing negative publicity, and
avoiding the uncertainty and cost of trial.
In a domestic relations case, a mediator
could note that both parents have said
they want to resolve the dispute quickly
and to work out residential and visitation
arrangements that would be least
disruptive for the children.
II. The Principle of Authority
People are more easily influenced by
those they perceive to be legitimate
authorities. This response makes great
sense because legitimate authorities have
typically attained their positions by virtue
of greater knowledge or skill or experience
in the matter at hand. But for all their
specialized knowledge, these experts

Fall 2002

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