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Activities and Exercises
Group polarization - David Myers share this activity he has used in his social psychology classes.
A class activity on social loafing
Lost
on the Moon Task - Marianne Miserandino shares her version
of the Lost on the Moon task. The first link is to her handout
describing how she runs the activity in her class. Here
is the actual moon problem to be solved by a group. Here
are the answers to the moon problem. [added 2/19/14]
The
Cave Rescue Mission - group decision making task provided
by Valerie Pruegger [added 2/19/14]
Hidden
Profile Task - Dana Wallace offers these PowerPoint slides
he uses for a group decision making task. Dana states "Ive
tried to get a hidden profile task to work in the classroom
before, but the students were so excited to talk to each other
that they disclosed all information! Now I use powerpoint of
Jack and Jill to show the same points of how different decisions
can be made based on information available." If you would
like more information on this task, you can reach Dana at dwallace@jc.edu.
[added 2/19/14]
Group polarization
- This activity mirrors closely some of the original work when
we were referring to it as "risky shift." [added
2/19/14]
Social Loafing - To introduce the topic of social loafing
I sometimes divide my class in half. I have one side of the
room individually make a list of as many uses they can think
of for an automobile tire. I tell them that anything is acceptable.
The other half of the room works as a group (or two groups if
too large) on the same task. Not surprisingly, the individual
side generates far more uses per person than does the group
side. Of course, there are a lot of reasons for that, which
we discuss. But one of the reasons is social loafing. [added
2/19/14]
Social Loafing - At the end of our discussion of social
loafing, I divide the class into small groups to work on the
following problem: Use the conditions research has identified
that increase or decrease the likelihood of loafing in a group
to identify strategies for managing workers at a fast food restaurant.
[added 2/19/14]
Social Facilitation - To introduce the topic of social
facilitation I ask for two volunteers who are willing to do
a little math. (Not many takers for that one!) I have one volunteer
stay at his/her desk and have the other volunteer come to the
blackboard. I give them both the same multiplication problem
(e.g., 8,347 x 348) to solve as quickly as they can. The student
at the desk usually gets the wrong answer. The person at the
board almost always gets the wrong answer. It provides a good
example of all the different theories of social facilitation
such as evaluation apprehension and distraction conflict. [added
2/19/14]
The
"O" train: Teaching the power of ostracism - Lisa Zadro
and Kipling Williams use this in-class activity to "show students
the powerful consequences of ostracism firsthand using an engaging,
validated teaching tool: the "O" train." This activity was awarded
an honorable mention in the Social Psychology Network's inaugural
Action Teaching Award program. [added 4/6/06]
Are
more heads better than one? - Dave Myers passed along this
good in-class demonstration. He refers to James Surowiecki's
book, The Wisdom of Crowds, in which the author makes the point
that groups can make better decisions than the average individual
under certain conditions (e.g., "given freely contributed inputs
from varied perspectives" -- Myers). This point can be illustrated
in class using the "jelly bean challenge."
As Dave suggests, "The idea would be to
* have individual class members estimate the number of beans.
* average those estimates.
* ask for a show of hands from people who were closer to the
correct answer--2845 beans--than the class answer.
The
anticipated result would be few hands raised, thus illustrating
that, as the text will say, 'all of us together can become smarter
than almost any of us alone.'" Other related questions could
be explored by such variations as dividing half the class into
small groups to reach a group decision about the number of jelly
beans and leaving the other half to make individual judgments.
[added 1/13/06]
Demonstrating
deindividuation
- David Dodd's article "Robbers in the classroom: A deindividuation
exercise" [added 9/4/02]
.

Multimedia
Resources (Audio / Video)
Audio
How our group loyalties can shape us (50:02) - a podcast on the topic
Social
loafing - a podcast from Michael Britt [added 2/19/14]
Case
studies - five different BBC radio programs looking at five different
group experiences [added
3/24/09]
Video
Group polarization (9:04) - George Schreer pointed me to this excellent example of group polarization. This Ted Talk describes how Google and Facebook among other sites place us in "filter bubbles" exposing us primarily to information with which we agree.
Leadership
- An author on leadership, Jim Collins, provides some brief
videos on the topic. H/T Dana Wallace [added
2/19/14]
Group polarization
- (1:05:24) The authors of the
article mentioned above discuss their research on the increased
polarization of American political attitudes along party lines.
[added 2/19/14]
"Is
the Web making you narrow-minded?" - (9:05)
The first link takes you to an excellent and scary TED talk
on how the Internet is being filtered for us so that we don't
see and hear what everyone else does. Here
- (25:02) is an interesting
episode of PsychFiles from Michael Britt on this topic of possible
group polarization of the Web. [added 6/25/12]
.
Class
Assignments
Projects
Group
Dynamics course - Here is a unique approach to teaching a group
dynamics course with some experiential assignments. Here
is a link to an observation assignment in which students analyze the
group dynamics of a classroom. This
link takes you to an assignment in which a small group observes
the dynamics of another group anywhere they find one. [added
9/25/10] Group
presentations: Jonahue! -
While knocking around in Don Forsyth's site, I couldn't help remembering
the times I taught Group Dynamics many years ago (using Don's excellent
text). So, bear with me as I reminisce and share a rather odd class
assignment. I was looking for some way for my students to learn about
group dynamics while working in groups, and at the same time I wanted
to develop their oral speaking skills. But I didn't want them to give
the usual oral presentations in which they delivered a prepared speech.
They got enough of that (or at least some of that) in their other
courses. I wanted them to learn to speak extemporaneously and knowledgeably
about a topic. So, I asked myself, where do we find experts speaking
publicly extemporaneously? One venue I thought of was the talk show.
Sometimes experts are invited to come on a talk show, not to give
a speech, but to answer questions. At the time, one of the talk shows
doing this was hosted by Phil Donahue. My first name is Jon, and,
voila... "Jonahue" was born! Each week I turned my Group
Dynamics classroom into a talk show. I, Jonahue, was the host. A group
of three students was "invited" to be the guests on the
show because they were experts (if they prepared well) on a particular
group dynamics topic. More specifically, the group was there to use
its expertise on the topic to apply it to a specific topic-related
problem. The other members of the class were the audience and were
required to ask questions. As host, I also asked questions. And, I
recorded my wife asking questions I prepared for her that I played
during class as if she were a live caller to the show. Each group
of three students went through this ordeal three times during the
term. It was fun! And, more importantly, I think it worked. [added
3/6/02]

Examples
Group polarization (9:04) - George Schreer pointed me to this excellent example of group polarization. This Ted Talk describes how Google and Facebook among other sites place us in "filter bubbles" exposing us primarily to information with which we agree.
Group
polarization - This presentation discusses the presence of polarization
in online stock message boards. [added 2/19/14]
Illusion
of consensus/grouthink - Author makes the point that the same
mistakes leading up to the Iraq war are being repeated. [added
4/3/13]
What
happens if the mayor is your jury foreman? - interesting case
of former New York Mayor Guiliani serving as foreman of a jury
[added
6/3/08]
At
the World Trade Center site after the 9-11 attack - a brief summary
of the book by William Langewiesche which details many examples of
social influence in the aftermath [added 3/23/04]
Deindividuation
Deindividuation
- This link suggested by Steve Jones includes lots of good examples
of deindividuation. More examples here.
[added 2/19/14]
In class
we discussed that being in a group leads to deindividuation. I recently
watched the movie "To Kill A Mockingbird." In it, there is a scene
where a mob has gathered at the jail. They want to lynch a black man
who they believe has raped a white woman. The men in the mob are acting
together in a ugly unison of threats and violence until the little
daughter of the man trying to stop the mob speaks up. She calls out
to one of the men in the mob by name, reminding him who she is, reminding
him of his visits to their house, reminding him that she plays with
his son, etc. The man finds these statements embarrassing. They increase
his self-awareness and strip away the mob mentality that he was a
part of. He can no longer hide behind the mob as the blame for the
violence. He now can see the responsibility on his shoulders not just
diffused on others. All of this causes him to announce in a loud voice
that he's leaving and thinks the other mob members should do the same,
which they do.
A couple
weeks ago I chaperoned a trip to Bloomington for the ISU high school
marching band competition. My son's last words as we got to the high
school were, "Dad, please don't embarrass me by yelling at everyone
on the bus." Much to his delight I was assigned to another bus. I'm
sure that each of these band members individually are fine young persons.
But nowhere has deindividuation been more obvious than on that bus.
Screaming, yelling, climbing over seats, and general mayhem seemed
to be the order of the day. Keeping in mind what my son had said,
I tried a little informational influence to get them to conform to
the rules. I tried to explain how they might get hurt climbing over
the seats, and how they needed to rest and conserve energy to be at
their best for the competition. That didn't work very good. I didn't
think normative influence would work because the group norm seemed
to be acting wild and crazy. I concluded that authority influence
was the only way. Several loud "SIT DOWN AND SHUT UP's" did the trick.
Social
Loafing
I used
to do a lot of singing. I sang in choirs, quartets, trios and did
solo performances as well. Mostly in church settings, but I also did
solo work when I sang in the work choir. Since I was the soprano with
the highest range, the other members depended on me to carry the high
notes. If I didn't hit them, nobody did. I found that after several
performances, my voice would begin to show the strain and it became
necessary for me to conserve it. Therefore, when we were singing in
an average range, I would only mouth the words. I could do this because
I knew that the others would continue to sing. However, as we approached
the bars that I was to sing, I found that the crescendo of all of
our voices together helped me to do a better job. That was not the
case when I sang in smaller groups. When I was the "only" soprano,
social loafing was not allowed. If I hadn't sung every note, the harmony
would have been badly distorted. Not wanting to experience their disapproval
or our mutual humiliation, I had a greater incentive to do my part.
In my
Industrial Labor Relations class, we are currently doing a group project.
The class is divided into two sides, 8 people on the management side,
and 12 people on the union side (I'm on management). What we are trying
to do is to renegotiate the labor contract between a union and a slaughter
house (that is in financial trouble). This class has brought to light
many examples for me to write about. The first one that comes to mind
deals with social loafing. In both groups, it is present. But,
after a talk with a friend on the union team, I found out that it
is more prevalent on their team. This is probably due to their larger
number. What also encourages this is that we are graded as teams,
and the teacher never even looks up unless someone makes reference
to a chart. Unless the teacher remembers the voices of the people
who spoke, those who didn't will remain anonymous. A third factor
that encourages the social loafing is that on both sides, there are
people who really want to get good grades (me among them). The other
side has two people in particular that I know desperately want
an A so much that they seem to be doing the whole project. On our
side, pretty much everyone wants an A, and only 1 person could be
accused of social loafing (missed two important classes and does as
little as possible).
Tomorrow's
election affords the perfect opportunity for social loafing, and unfortunately,
many people take advantage of it. The group goal is to elect qualified
leaders of our choice. People tend to have less accountability and
less identifiability. Next year if our leaders are doing a poor job,
we can say, "I never voted for that jerk!" or "Yes, I voted for that
jerk, but so did a million other people!" This allows us to diffuse
our individual responsibility. Or I could tell myself that my one
little vote isn't going to make any difference in the election, so
why should I bother to vote at all?
It has
been proven that under certain situations we are more likely to loaf.
Boy, it sure is easy to loaf when you're at work. One way I noticed
that my manager has tried to reduce loafing at work is by goal setting.
Since I work in retail - the more we sell, the more we make! Commission
is very important to all of us at work -- and it seems most of us
always try to sell as good as we can -- so our reward is very nice
at the end of the month. Not only does this goal setting make a profit
for the employees who show the effort -- but it is also profitable
for the company. I think accountability and identifiability is very
important. I want to be noticed at work when I sell a three thousand
dollar ring -- and when I stay after hours to help clean up -- and
I want the people who choose to "loaf" to be noticed too -- and believe
me -- they are!
Topic
Resources
“’Likes’ and ‘shares’ teach people to express more outrage online”
Why the eclipse is (was) best experienced in a crowd - I just like the first picture in this article.
Whom do you look at in an audience when speaking? Nodders or frowners? - Interesting study tracked eye movements of speakers who were either high or low in social anxiety to see whom they would look at when speaking.
Debriefing after a task improves team effectiveness
Alcohol
and group formation - "Sayette and his colleagues assembled
various small groups using 720 male and female participants, a larger
sample than in previous alcohol studies. Researchers assessed individual
and group interactions using the Facial Action Coding System (FACS)
and the Grouptalk model for speech behavior. They concluded that
alcohol stimulates social bonding, increases the amount of time
people spend talking to one another, and reduces displays of negative
emotions. According to Sayette, the paper introduces into the alcohol
literature new measures of facial _expression_ and speech behavior
that offer a sensitive and comprehensive assessment of social bonding."
[added
12/24/12]
Going
with the social flow - "The key finding is that the participants
in the high interdependent condition were rated as more joyful than
participants in the low interdependence condition, based on self-report
and on scores given by trained observers who watched their facial
expressions and body language." [added
3/13/10]
How
much do our social networks shape our behavior? - More contagion
research -- Interesting New York Times article reviewing
research on the contagious nature of behavior within social networks
[added 1/19/10]
The
Watercooler Effect - Nick DiFonzo is the author of the book,
The watercooler effect: A psychologist explores the extraordinary
power of rumors. At this site he does provide some excerpts
of the text as well as links to some other good resources on rumors
at his site. [added 4/25/09]
"Contagious
Behavior" - a lot of good articles in the APS Observer
including this cover article [added
7/6/06]
Don
Forsyth's group dynamic pages - A few years back I pointed you
to Don Forsyth's excellent resources available online. I am pointing
you to them again because 1) they are still excellent! and 2) they
have moved with Don to his new address at the University of Richmond.
[added 1/15/06]
"Changing
America: Indicators of Social and Economic Well-being by Race and
Hispanic Origin"
- "This chart book documents current differences in well-being
by race and Hispanic origin and describes how such differences have
evolved over the past several decades. The book is designed to further
one of the goals of the President's Initiative on Race: To educate
Americans about the facts surrounding the issue of race in America."
[added 7/16/03]
"The
Seven Sins of Deadly Meetings"
- article by Eric Matson [added 3/6/02]
Case
Studies
The
Cuban Missile Crisis - Declassified documents, audio clips,
chronology, analysis and more from an exhibit "The Cuban Missile
Crisis, 1962: The 40th Anniversary" from the National Security
Archive at George Washington University [added 12/1/04]
The
Andes Survivors
- description and resources related to true story of airplane survivors
- good for the study of many group processes [added
3/6/02]

The
Jonestown Massacre
Multiple
resources on the massacre - This site from NPR provides audio
of stories about the event, an interview with a survivor, images
of the massacre, review of the events and more. [added
3/19/04]
Multiple resources
on the massacre from the Department of Religious Studies at San
Diego State University - The Department has created a website entitled,
“Alternative Considerations of Jonestown and Peoples Temple,"
which provides a 25th anniversary review, personal reflections,
tape transcripts and more. [added 3/19/04]
Crowding
Policing
crowds - A good blog entry identified by Steve Jones that offers
alternative explanations to crowd behavior beyond deindividuation.
Links to a report on "Crowd psychology and public order policing."
[added 2/19/14]
Studying
crowding in "synthetic" laboratory - "Torrens
and his research team, with funding from the National Science Foundation
(NSF), are developing a synthetic laboratory populated with thousands
of artificial agents to experiment with ideas and theories about
crowd behavior and dynamics that would otherwise be impenetrable
to academic inquiry. Of special interest are the geographic processes
that occur for a crowd to become charged and then cross over the
tipping point into a full-blown riot." [7/13/09]
"Crowd
clout" - Interesting look at a relatively new phenomenon
in which the Internet permits large groups of people to come together
for a cause or a purpose -- the primary focus of this selection
is on "buying together." CROWD CLOUT: “Online grouping
of citizens/consumers for a specific cause, be it political, civic
or commercial, aimed at everything from bringing down politicians
to forcing suppliers to fork over discounts.” [added
7/8/07]
Deindividuation
and Anonymity
Anonymity
on the Internet - a good article noted by Steve Jones [added
2/19/14]
Ostracism
"Children's
and teenagers' reasons for excluding others" - "Eighty-four
children were interviewed: 28 7-year-olds, 28 11-year-olds and 28
17-year-olds. A clear difference emerged with age. The younger children
rarely described themselves as having any choice when they'd excluded
others. They mostly mentioned practical reasons - 'We were playing
piggy-back wars ... another kid wanted to play ... we didn't have
any more people for him,' or peer pressure - 'We were playing jump
roping and somebody else wanted to play with us, but then my friend
said no.' Their pleas of innocence contradict behavioural observations
showing that young children often leave other kids out deliberately.
The 17-year-olds, by contrast, were more up front, most often giving
the reason that they disliked the excluded person - 'We didn't invite
this one girl because she's not open-minded ... ,' was a typical
comment." [added
12/24/12]
Acetomeniphen
reduces pain of social rejection - Yep, soon there will be a
pill for everything. Apparently, "social rejection and physical
pain really do share some of the same brain circuits." The
first link is to the journal article; the second link is to a blog
entry about it. [added
7/21/10]
"Does
social exclusion literally feel cold?" - "In another
experiment, instead of relying on volunteers' memories, the researchers
triggered feelings of exclusion by having the volunteers play a
computer-simulated ball tossing game. The game was designed so that
some of the volunteers had the ball tossed to them many times, but
others were left out. Afterwards, all the volunteers rated the desirability
of certain foods and beverages: hot coffee, crackers, an ice-cold
Coke, an apple, and hot soup. The findings were striking. As reported
in the September issue of Psychological Science, a journal of the
Association for Psychological Science, the "unpopular"
volunteers who had been ostracized during the computer game were
much more likely than the others to want either hot soup or hot
coffee. Their preference for warm food and drinks presumably resulted
from physically feeling cold as a result of being excluded."
[added
4/25/09]
Cyberball!
- Kipling Williams offers downloads of Cyberball, "a virtual
ball-toss game that can be used for research on ostracism, social
exclusion, or rejection." Could also possibly be used for lab
activities. [added 1/8/06]
Social
Facilitation
Heaven's
GateCult
Controversies - resources from the Washington Post describing
various controversial cults since the 1950s [added
12/1/06]
F.A.C.T.Net.org
- F.A.C.T.Net
(Fight Against Coercive Tactics Network) "focuses on protecting
freedom of mind from harms caused by all forms of mind control and
unethical influence" - lots of information and resources on
cults, scientology and attempts at mind control [added
12/06/02]
"A
social psychological critique of "brainwashing" claims
about recruitment to new religions"
- article by James T. Richardson - from J. Hadden and D. Bromley,
eds. (1993), The Handbook of Cults and Sects in America. Greenwich,
CT: JAI Press, Inc., pp. 75-97. [added 3/6/02]
International
Cultic Studies Association --
"Founded in 1979, the International Cultic Studies Association
(ICSA) is a global network of people concerned about psychological
manipulation and abuse in cultic groups, alternative movements,
and other environments. ICSA is tax-exempt, supports civil liberties,
and is not affiliated with any religious or commercial organizations.

Articles,
Books, and Book Chapters (available online)
Book
Chapters
Wegner,
D. M. (1986). Transactive
memory: A contemporary analysis of the group mind.
In B. Mullen & G. R. Goethals (Eds.), Theories
of group behavior (pp. 185-208). New York: Springer-Verlag.
Beilock,
S. L., & Carr, T. H. (2001). On
the fragility of skilled performance:
What governs choking under pressure?
Journal of Experimental Psychology:
General, 130, 701-725.
Blair,
I.V., & Jost, J.T. (2003). Exit,
loyalty, and collective action among
workers in a simulated business environment:
Interactive effects of group identification
and boundary permeability.
Social Justice Research, 16,
95-108.
Blascovich,
J., Mendes, W. B., Hunter, S. &
Salomon, K. (1999). Social
facilitation as challenge and threat.
Journal of Personality and Social
Psychology, 77, 68-77.
Cohen,
F., Solomon, S., Maxfield, M,. Pyszczynski,
T., Greenberg, J. (2004). Fatal
attraction: The effects of mortality
salience on evaluations of charasmatic,
task-oriented and relationship-oriented
leaders. Psychological Science,
15, 846-851.
Duguid,
M. M., & Goncalo, J. A. (2012).
Living
large: The powerful overestimate their
own height. Psychological
Science, 23, 36-40.
Fowler,
J. H., & Christakis, N. A. (2010).
Cooperative
behavior cascades in human social
networks. PNAS, 107,
5334-5338.
Haines,
E.L., & Jost, J.T. (2000). Placating
the powerless: Effects of legitimate
and illegitimate explanation on affect,
memory, and stereotyping. Social
Justice Research, 13, 219-236.
[added 2/28/06]
Hofmann,
W., & Windschitl, P. D. (2008).
Judging
a group from sampling members: How
the subdivision of a minority affects
its perceived size and influence.
Journal of Social Psychology,
148, 91-104.
Keizer,
K., Lindenberg, S., & Steg, L.
(2008). The
spreading of disorder. Science,
322, p. 1681-1685.
Koslowski,
S. W. J. & Ilgen, D. R. (2006).
Enhancing
the effectiveness of work groups and
teams. Psychological Science
in the Public Interest, 7, 77-124.
[added 7/06/07]

Krizan,
Z., & Baron, R.S. (2007). Group
polarization and choice-dilemmas:
How important is self-categorization?
European Journal of Social Psychology,
37, 191-291.
Kruger,
J., Windschitl, P. D., Burrus, J.,
Fessel, F., & Chambers, J. R.
(2008). On
the rational side of egocentrism in
social comparisons. Journal
of Experimental Social Psychology,
44, 220-232.
Mendes,
W. B., Blascovich, J., Major, B. &
Seery, M. D. (2001). Challenge
and threat during upward and downward
social comparisons. European
Journal of Social Psychology, 31,
477-479.
Mesmer-Magnus, J.R., & DeChurch,
L.A. (2009). Information
sharing and team performance: A meta-analysis.
Journal of Applied Psychology,
94, 535-546.
Minson,
J. A., & Mueller, J. S. (2012).
The
cost of collaboration: Why joint decision
making exacerbates rejection of outside
information. Psychological
Science, 23, 219-224.
Plous,
S. (1995). A
comparison of strategies for reducing
interval overconfidence in group judgments.
Journal of Applied Psychology,
80, 443-454.
Poortvliet,
P.M., Janssen, O., Van Yperen, N.W.,
& Van de Vliert, E. (2007). Achievement
goals and interpersonal behavior:
How mastery and performance goals
shape information exchange. Personality
and Social Psychology Bulletin, 33,
1435-1447.
Stiff,
C. E., & Van Vugt, M. (2008).
The
power of reputations: The role of
third party information in the admission
of new group members. Group
Dynamics, 12, 155-166.
Triplett,
Norman. (1897). "The
Dynamogenic Factors in Pacemaking
and Competition". American
Journal of Psychology, 9, 507-533.
Van
Vugt, M. (2006). The
evolutionary origins of leadership
and followership. Personality
and Social Psychology Review, 10,
354-372.
Van
Vugt, M., Hogan, R., & Kaiser,
R. (2008). Leadership,
followership, and evolution: Some
lessons from the past. American
Psychologist, 63, 182-196.
Van
Vugt, M., Jepson, S., Hart, C., &
De Cremer, D. (2004). Autocratic
leadership in social dilemmas: A threat
to group stability. Journal
of Experimental Social Psychology,
40, 1-13.
Weaver,
K., Garcia, S. M., Schwarz, N., &
Miller, D. T. (2007). Inferring
the popularity of an opinion from
its familiarity: A repetitive voice
can sound like a chorus. Journal
of Personality and Social Psychology,
92, 821-833.
Wilson,
D. S., Van Vugt, M., & O'Gorman,
R. (2008). Multilevel
selection theory and major evolutionary
transitions: Implications for Psychological
Science. Current Directions
in Psychological Science, 17,
6-9.
Wiltermuth,
S. S. & Heath, C. (2009). Synchrony
and cooperation. Psychological
Science, 20, 1-5.
Zhong, C., Bohns, V., & Gino,
F. (2010). Good
lamps are the best police: Darkness
increases dishonesty and self-interested
behavior. Psychological Science,
21, 311-314.
.

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Copyright
2000-2022. This site was created and is maintained by Jon
Mueller, Professor of Psychology at North
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