Social Influence Dr. Fenja Ziegler Foundations in Psychology

Foundations in Psychology
Social Influence
Dr. Fenja Ziegler
Social Influence
• Behaviour/ attitudes influenced by presence
of others?
– When? Why? How?
Conformity
Obedience
Explicit
Implied
Norm Development
Sherif, 1935
• 100 judgements in private:
how far in inches?
• Autokinetic effect (appears
to oscillate)
• Judgements with 2/ 3
others present
• Converge away from
individual to common
standard= Social Norm
• Pps deny being influenced
by others
• 100 judgements in private:
how far in inches?
• Autokinetic effect (appears
to oscillate)
• Judgements with 2/ 3
others present
• Converge away from
individual to common
standard=
• Pps deny being influenced
by others
Movement in Inches
Norm Development
Sherif, 1935
9
8
7
6
5
4
3
2
1
0
1
2
3
4
Judgement Number
PP 1
PP 2
PP 3
Uncertainty and Social Norms
• Uncertainty and little
information in tasks
– Use a heuristic
– Look for new source of
information in difficult
task
→ other people
– Majority rule
(democracy!)
• Applies to attitudes or
judgements in social
context (real/
imaginary)
– Influenced by those
around us
• Sherif: how group
attitudes are formed
Asch, 1951
100
80
60
37
40
20
0
0.7
Control
No Uncertainty –
Group Norm?
Critical
Informational and Normative
Deutsch & Gerard, 1955
• Informational:
– Converge to group norm
to gain information
– Useful heuristic
• Conversion
public & private
• Normative:
– Gain acceptance and
praise
– Avoid punishment and
exclusion
• Compliance
public
• Explicit aim for group to be accurate (increase group
pressure)
• & ½ trials: lines disappear before judgement
(increase uncertainty)
– Increase in conformity
Compliance and Conversion
Uncertain own
opinion
Difficult task
Informational
Influence
Little Info
Certain own opinion
Easy task
Detailed info
Normative Influence
Conversion:
Private & Public
Attitudes
Compliance: Change
in public attitude
only
Moderators of Normative Social Influence
1. Group cohesiveness
– More cohesive, more
conformity
2. Group size
– 2 is not a group, from
3, no change
3. Social Support
– Correct or incorrect
breaking of social
consensus
– Not if incompetent
(e.g. thick glasses)
40
35
30
25
20
15
10
5
0
Lone
Critcal
1 Support
Control
Moderators of Informational Influence
1. Perceived self-confidence
2. Task difficulty
3. Cultural norms (individualistic and
collectivist)
Pendry & Carrick, 2001
Henry who is an
Accountant
Henry who is a punk
rocker
114
112
110
108
106
104
102
100
Accountant
Punk
No Prime
Moderators of Informational Influence
1. Perceived self-confidence
2. Task difficulty
3. Cultural norms (individualistic and
collectivist)
Pendry & Carrick, 2001
Decreased conformity
for Punk prime, then
no prime,
then Accountant
Henry who is an
Accountant
Henry who is a punk
rocker
Group Polarization
• Pressure to conform at group level
– Can change social norm
– Initial attitude becomes exaggerated
• Normative influence:
– Fit in with group → move towards group norm
• Informational Influence:
– Group as source of information
– Encounter many arguments in favour of position
→ become more convinced
Extreme GP: Group Think
• Excessive desire to
achieve consensus:
– Deterioration in mental
efficiency, reality
testing, moral
judgement
• Symptoms:
– Increased conformity,
overestimation of group
competence, closemindedness
28 Jan 1986
Launch of Challenger
cohesiveness
(important/ high-profile
project ) & Stress
conform to
group norm:
Launch
overconfident
close-minded
Minority Influence on Majority?
Minority Influence on Majority?
Moscovici (1980)
•
Yes, if
1. Minority is consistent
in behaviour
2. Not rigid and dogmatic
3. Committed ( can lead
to conversion, i.e.
private change)
4. Relevance to social
trends
• Do they know
something we don’t
know?
• Majorities:
– Social comparison →
Compliance
• Minorities:
– Private conformity
– Leads to better
judgements
– Avoid groupthink
Just following orders?
• Why follow orders you
know are wrong?
• Theory:
– Germans are different.
– They are obedient.
Obedience to Authority
Incorrect answer = shock;
increase by 15volts
Please continue,
The experiment requires you to
continue, please go on.
It is essential that you continue.
You have no choice, you must
continue.
•Starts banging on the wall
•Complains of heart
condition
•No further response
Obedience to Authority
% of participants obedient
100
90
80
70
60
50
40
30
20
10
0
actual
predicted
Learner complains of pain
Pleads to be let out
Screams and refuses to answer
75
150 "Strong" 225 "Very
"Moderate"
strong"
300
375 "Danger 450 "xxx"
"Intense"
severe"
Increasing intensity of shocks
Explaining It all
1. Cultural norm: obey authority
2. Gradual: from small shocks to lethal shocks
over long period of time
3. Agency: no longer feel personally
responsible
♂ Gen Pop: 85%
♂ Students: 50%
Students: 62%
Students: 85%
♂ Gen Pop: 65%
♀ Gen Pop: 65%
Students: 85%
Students: over 90%
Gen Pop: 80% Gen Pop: 92%
♂ Students: 40%
♀ Students: 16%
10
20
22
30
40
48
100
90
80
70
60
50
40
30
20
10
0
65
% Showing Obedience
Influences on Obedience
Milgram’s (1963) findings
• Unethical (study or findings?)
• All capable of following orders which we know are
not the right thing to do
• But, all participants were distraught whilst doing it
–
–
–
–
Educate on blind obedience
Take responsibility for own actions
Role models who refuse to obey
Question motives of authority issuing unreasonable orders
Obedience vs. Conformity
• Occurs within a hierarchy
– Feeling that the person above
has the right to prescribe
behaviour
– Links one status to another
– Emphasis is on power
• Behaviour adopted differs
from behaviour of authority
figure
• Prescription for action is
explicit
• Participants embrace
obedience as explanation
for behaviour
• Regulates the behaviour
among those of equal status
– Emphasis is on acceptance
• Behaviour adopted is similar
to that of peers
• Requirement of going along
with group implicit
• Participants deny
conformity as an
explanation for behaviour
references
reading
• AS level, Chapter 2
watching