Psychology 2100: Introduction to Social Psychology

Warren Thorngate, Professor
Psychology Department, Carleton University
1125 Colonel By Drive
Ottawa, Ontario K1S 5B6
Canada
e-mail = warren_thorngate@carleton.ca

copyright 1999-2006 by Warren Thorngate, all rights reserved


Lecture 6: Social comparison processes

Two skill-testing questions 

Question 1: What is the population of Peru?

 

Question 2: In what year was the Prophet Mohammad born? 

 

  1. Note how private judgements show more variability
  2. Note how public judgements tend to converge over time
  3. Example: What is the population of Iceland? (correct estimate = 275,000)


The narrowing of judgements indicates that people are influencing each other

Public judgements are not necessarily better (or worse) than private judgements.  For example, the red-line public estimate shown in the chart above is converging on an estimated Iceland population of about 1.2 million, but the true value is about 275,000. 

As we will see, the judgements converge on what we call a social norm. And they converge as the result of social influence.

 Types of social influence: Three loose categories 



Leon Festinger's (1954) Theory of Social Comparison: two of several axoms

1. Judgements we make can be based on 

2. To the extent that we lack intrinsic information to make a judgement, we will be influenced by extrinsic information 


Some examples of judgements based mostly on extrinsic information: 


An example from the laboratory: Schacter and Singer's (1962) study testing James-Lange theory of emotion ("I am sad because I am crying" not "I am crying because I am sad") 


Examples from life? 

Individual differences in importance of social comparison 


Social comparison and the development of norms

What is a norm? 

Social comparison -> development of norms (descriptive definition) -> expectation of norm (prescriptive and proscriptive definitions)

Many norms are useful for individuals and groups 

And many norms are maladaptive or silly 

More commonly, some norms help some people and hurt others 


Norms constrain variety -- by definition. Such constraint is easy for people "in the middle" and harder for people "on the edge". Thus, norms stimulate debate from those on the edge about their necessity and justification, and about the balance between individual and group rights and obligations.