Title: Social Psychology 320 Lecture 1 Gabriela Ilie Fall 2006 Department of Psychology University of Toronto
1Social Psychology 320Lecture 1Gabriela Ilie
Fall 2006Department of PsychologyUniversity
of Toronto
2Attitude change video clip
3Outline of todays lecture
- What is an attitude definition
- Measurement of Attitudes
- Research methods and designs
- Implicit vs. explicit attitudes (a brief
introduction)
4What is an attitude?
- A mental disposition to favor (pleasure-pain) or
oppose (approach-avoidance) certain objects, such
as individuals, groups of people or social
policies. - Thurstone (1931)
- Attitude is the affect for or against a
psychological object (p.261)
5Attitude Object
- Anything we have an attitude about
- Individual objects (i.e., ice cream),
- Categories (e.g., ice cream flavors),
- Individuals (e.g., me),
- Groups (e.g., students), or
- Abstract ideas (e.g., psychology).
6Attitude Object
We build up models of how we view the world,
based upon our experiences based upon what is
happening in the world.
/- Attitude
Evaluative Responses
Attitude Gay marriages are good Response I
like gay couples
7Video clip
8Video clip 2
9- Jones (one of your readings this week)
- Video clip
- Both make clear the following point
- Values are never completely isolated from the
other values of the individual or from those held
by the prevalent society.
10What is an attitude?
- A hypothetical construct, an abstraction (Green,
1953). - Attitudes are not directly observable.
- Attitudes are inferred from observable responses.
The relevant observations here are evaluative
responses that are elicited by certain perceived
(real or imagined) stimuli, or occur in close
conjunction with the perceived (real or imagined)
attitude object. - If there is an established tendency to respond in
a certain way toward an attitude object, the
person has formed an attitude toward this object.
11- You are far too excited about this whats in it
for you? - Look at your life failure after failure. What
do you think this says about you? - I cant stand that kind of thinking. Why dont
they go back to their country! - You are ugly!
- You have such a beautiful mind!
- You are so happy all the time! How can you be so
happy???
12How do we know that a person is outgoing or
reclusive?
13- We cannot observe traits and attitudes they are
not a part of a persons physical
characteristics, nor do we have direct access to
a persons thoughts and feelings. - Obvious ways in which values enter
- Not-so-obvious ways in which values enter
- The subjective aspects of science
- Psychological concepts contain hidden values
- There is no bridge from is to ought (the
naturalistic fallacy)
14Evaluative Responding
- Attitudes develop on the basis of evaluative
responding. - We cannot unequivocally conclude that an
individual holds an attitude until he/she
responds evaluatively to an AO (attitude
object).
15Evaluative Responding
- Bad
- Good No Yes
-
- No Indifference Negative
- Yes Positive Ambivalence
161. How do we do define attitudes?2. Once
defined how do we measure them? One difficulty
always is our interpretation of the data bias.
17Hypothesis
- A belief or assertion as to the causal
- relationship between two or more variables
What do Canadians think of gay marriages?
A fundamental assumption in our field Social
problems (such as the one above) can be studied
empirically.Let the data decide
18Where do hypotheses come from?
- Current debates in our culture
- Researchers own experiences
- Public, puzzling events
- E.g. The college shutting in Montréal
19Methodological choices
- The identical social problem can be studied in
different ways - Choices reflect fundamental values held by
scientist
20Operational Definitions
- Examples
- Abstract variable operational definition
-
Self esteem
Questionnaire
Happiness
Facial muscles
Stereotypes
Reaction time
Note some operational definitions are better
than otherswe shall return to this point.
21Validity and the experimental method
- On the market value of experiments
- Three types of validity
- External
- Internal
- Construct
221. External
- Are the results generalizable across
- Situations
- People (Sears, 1986)
- REPLICATE, REPLICATE, REPLICATE!
- One replication is worth a thousand t-tests
232. Internal Validity
- Definition Confidence in making a causal link
between your IV and the DV. - Avoidance of confounds
- Random assignment
- Absence of demand effects
243. Construct Validity
- Two related parts
- Are you measuring what you think youre
measuring? - Are you manipulating what you think youre
manipulating?
25Construct validity for measurement of variables
- Abstract variable Concrete measure
-
?
optimism
questionnaire
?
happiness
Facial muscles
?
stereotypes
Self report RTs
- In this context, CV is defined as the certainty
with which the abstract variable is being
accurately measured by the concrete variable. - Higher certainty higher construct validity
26Construct validity for manipulation of variables
- Similar as before, but here concerned with link
between abstract variable and its manipulation.
Abstract variable
Concrete manipulation
Randomly assign participants to watch 1 hour of
either Kill Bill or Mr. Rogers Neighborhood
media violence
27Tricks (tools of the trade) used by
experimental social psychologists
- Hard to be completely realistic, but they can try
to compensate by - Use of confederates, staging, sometimes
deception - Make psychological dynamics as real as possible
(even though the setting may be artificial) - Best example Milgram (1963) study!
28- If the experimental method is so great, why
doesnt everyone use it all the time?
29Other methodologies
- Observational and Archival
- Correlational
301. Observational methods
- hidden camera or behind the bushes approaches
- Strengths vs. Weaknesses
31Correlational
- Often, through surveys
- advantages
- Main disadvantage Correlation does not equal
causation - Note it is not the observation that is being
challenged, it is the interpretation
32- Interpretation of correlational designs are often
made more difficult by third variable problems
X
Y
Z
33Some famous goofs in methodology
34- 1936 presidential race
- Franklin Delano Roosevelt vs. Alf Landon
- - Poll by Literary Digest (based on telephone
surveys) predicts Landon will win - - Affluent voters tended to be conservative, and
affluent voters also more likely to have phones - - Non-representative sample
35History repeats itself in 1948 presidential
electionSame problemtelephone polling
36Are social psychologists influenced by their own
values?
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40 Automatic Controlled
Two modes of attitude elicitation
- Fastrapid processing of information
- Relatively effortless
- Unintentional
- Difficult to stop
- Slow to change
- Often reflects associative connections
- Doesnt necessarily conform to logical, rational
thinking
- Relatively slow
- Often guided by logical, propositional thought
- Effortful
- Reason-based
41Why this distinction is important
- On a basic leveltells us something important
about the architecture of human processing and
the brain - Explains several interesting aspects of
attitudes - 1. Human beings often think of themselves as
rational beings largely in control of their own
actions, but this view is overly flattering - Automaticity trumps control more often than
people think - Sometimes our behavior reflects seemingly
irrational processes and/or impulses wed rather
avoid, if we could - 2. Automaticity plays a large role when the
available information is scarce and/or ambiguous - Role of schemas in information processing
42- Frank doesnt consider himself to be biased
against racial minorities. When he meets an
African American man on the street, however, he
finds himself reacting with more anxiety and fear
than he would if the man were White. - The CN tower in Toronto has the highest
observation deck in the world. One small part of
the deck floor is made out of glass. The glass
is several feet thick and poses no more danger
than any other part of the floor. People readily
know it is perfectly safe, but will still walk
around it. - Jean loves chocolate (and is not on a diet). In
an experiment, she is given a piece of chocolate
which is shaped to look exactly like dog feces.
Jean finds it nearly impossible to eat the
chocolate without gagging.
- Alan goes to a Christmas party and, even though
he has sworn off chocolate, eats approximately
1.5 pounds of M Ms. - A baseball player hits three home runs in July.
Even though he knows its foolish, he wears the
same pair of lucky socks he wore that day
through the end of September. - Youve been sworn to secrecy not to tell anyone
about a really juicy gossip about Mary. You see
Marys best friend at a party, and the next thing
you know, youve blurted to the friend
everything you know about the secret. - Halfway through a professional magicians show,
the magician appears to show the ability to read
other peoples minds. You know that ESP is
completely bogusand still feel that way after
the show is overbut for a few minutes you cannot
shake the feeling that youve just witnessed an
act of ESP.
43Many of the preceding examples illustrate
trumping of automaticity over control
Control
Automaticity
But this raises a larger (and more complex)
questionhow exactly do these systems talk to
one another? And, what are the conditions under
which control and automaticity work together, as
opposed to in opposition with each other?
44How do we know if someone has a positive attitude
towards gay marriages?
45Indicators of Attitudes
- Behavior (She eats it)
- Affective reaction (She likes eating it)
- Self-Report (She tells us she likes it)
- Peer-Report (Her mom tells us)
- Physiological Measures (heart rate?)
46Birth of Attitude Measurement
Attitudes can be measured!
- Louis Thurstone (1928) attitudes can be measured
scientifically - Applied methods of psychophysics to attitudes.
47Behavioral Indicators
- Head movement
- When people listen to messages they agree with,
they tend to move their heads vertically (nod)
more than horizontally (shake).
48Behavioral Indicators
- Eye Contact
- Affiliative Conflict Theory - people who like
each other are more intimate and engage in more
intimate behaviors like eye contact. - Therefore If two people like each other, (
attitude) they will make more eye contact than if
they do not like each other (- attitude).
49Behavioral Indicators
- Galvanic Skin Response (GSR)
- Drop in the resistance of the skin to the passage
of a weak electric current indicative of emotion
or physiological arousal (usually measured in the
palm of the hand).
50Are emotional responses related to attitudes?
51Galvanic Skin Response (GSR)
- Presentation of pleasant words (e.g., love) -gt
increase individuals GSRs (i.e., greater than to
neutral). - Same responses with unpleasant words (e.g.,
rape). - But, not with neutral words (e.g., chair) were
presented to the participants, their GSRs
remained neutral.
52 53Wink Wink!
- Does the size of a persons pupils reflect an
attitude? - Study on the pupillary responses of pedophiles to
pictures of nude adult women vs. girls. - Their responses were compared to the pupillary
responses of regular criminals.
54Wink Wink
- Results
- Pedophiles eyes dilated more when they viewed
the pictures of nude girls compared to nude
women. - The control group (other criminals) showed the
opposite reaction. - But
- Failure to replicate these results.
- Pupil responds to other features of stimuli other
than positive or negative attitudes (cognitive
effort ? dilation).
55Facial Electromyographic Recording (EMG)
- Electrical recording of muscle activity in the
facial region obtained by placing electrodes on
the face. - Measurement of the muscles needed to smile
(zygomatic) and frown (corrugator).
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57Indirect Methods
58Indirect Methods
- Self-report measures of attitudes vs. other
paper-pencil evalutions. - Self-report refers exclusively to direct tests of
attitudes when a respondent is aware that his or
her attitude is assessed.
59Indirect Methods
- Error-choice method -gt attitudes may distort our
cognitions (Hammond,1948). - False consensus effect - tendency to
overestimate the number of people who share your
beliefs and attitudes (Fabrigar Krosnick,1995).
60Indirect Methods
- Thistlewaite (1950) used content-driven errors in
syllogistic reasoning to study attitudes
(syllogism -gt conclusion based on 2 premises). - Example
- All white people are dumb.
- All dumb people should be sterilized.
- Therefore, all white people should be sterilized.
61Indirect Methods
- People are less critical to accept conclusions
that are consistent with their attitudes - They
expect that the reasoning is correct (because
congruent with their position).
62Indirect Methods
- Example
- If students are intrinsically motivated to learn,
then testing can be abandoned. - If students are intrinsically motivated, then
learning will increase. - Therefore, learning will increase when testing is
abandoned.
63Indirect Methods
- People like others who share similar attitudes
(Hendrick and Seyfried,1974). - Questionnaires allegedly completed by other
people, and asked respondents how much they liked
this individual.
64The Lost Letter Technique
- Milgram dispersed stamped and addressed envelopes
in public places (i.e., appeared to have been
lost by someone). - The letters were addressed to different
organizations including UNICEF and Nazi groups. - Rationale Mailing rates (how many letters were
mailed) is indicative of positive attitude.
65Scales Self-Reports
66Scaling
- Scales focus on a continuum from very negative to
very positive attitudes. Determine where on the
continuum the attitudes of individuals fall. - Core assumption one can measure phenomena by
assigning numbers /value on the basis of
rules/guidelines. - Measures can have up to 20-30 questions on one
attitude object.
67One-Item Scale
- Question that asks how positively or negatively
one feels about the AO. - Used in surveys and in experiments because they
- Do a sufficiently good job of measuring certain
attitudes, - Avoid redundancy
- Are extremely brief (cost-efficient)
68One-Item Scale
Thermometer scale - how warmly one feels
towards the attitude object.
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70Construction of an Attitude Scale
- Creating a set of items (statements about the
attitude object). - Determine the location of the items on an
evaluative dimension. - Administer the scale to a sample of respondents
and verify that respondents interpreted the items
as intended.
71Creation of good items
- Clarity of Attitude Object (i.e., ice cream vs.
eating ice cream). - Clarity about the Attitude Component (e.g.,
evaluation, beliefs, affect). - Clarity of statement (e.g., avoid double
negatives, use simple language). - Check clarity using Belson (1968) rewriting
method.
72Thurstones Method of Equal-Appearing Intervals
- Panel of judges sort possible items into groups
(positive, negative, neutral) - theorized to be
equidistant. - Items used in the final scale are those with the
highest level of agreement among the judges. - Respondents are then asked to state if they agree
with each of the statements. Attitude scores
consist of the average value of the items agreed
with.
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74Bogarduss Social Distance Scale
- Attitudes towards members of social or ethnic
groups. - Rationale - ones liking for a group is reflected
in the social distance deemed acceptable (in
relationship with members of the group). - Respondents score closest distance at which
the relationship is seen as acceptable.
75Continuum of Social Distance
- Would exclude from my country.
- Would accept as visitor only to my country.
- Would accept to citizenship to my country.
- Would accept for employment in my occupation in
my country. - Would accept to my street as neighbors.
- Would accept to my club as personal chums.
- Would accept close kinship by marriage.
76Likerts Method of Summated Ratings
- Items based on theoretical understanding of the
construct (attitude toward the Attitude Object) -
Does not require pre-sorting/evaluation by a
panel of judges. - Respondents indicate the extent to which they
endorse the statements (e.g., agree / disagree). - Each response option is assigned a value (e.g.,
-2 to 2 1 to 7). Individuals score is the sum
of answers across all items. - Scale homogeneity items-items and items-global
score correlations (not necessarily
correlations).
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78Osgoods Semantic Differential
- Measures the connotative meaning of the attitude
object. - Bipolar scales
- good ________________________ bad
- Score - average of the ratings.
79Osgoods Semantic Differential
- Three elements of meaning to all concepts
- Evaluation (good/bad),
- Potency (strong/weak)
- Activity (active/passive).
- most relevant to attitudes.
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81Osgoods Semantic Differential
- Advantage ability to compare attitudes towards
different objects because it uses identical
items. - Disadvantage Bipolar response format (all or
nothing). - Solution?? .
- An interview face to face?
82Problems with verbal report
- Participants may be unwilling to report their
real attitudes because they are socially
unacceptable (i.e., social desirability). - We may have some attitudes of which we are
unaware and over focus on a single
instance/situation. - Participants response styles can affect their
answers (acquiescence or polarization).
83Problems of Self-Report Measures
- How to control validity (response sets)?
- Social Desirability Scales
- Bogus Pipeline Paradigm
- Anonymous vs. non-anonymous reports.
- The bogus-pipeline procedure is effective in
obtaining more honest responses.
84Number of Items
- Important to realize that the more items on a
scale, the more reliable (replicable) the
measurement. - Many items reduce the chances that the attitude
score is due to error or chance. - On the other hand, multiple items can focus on
different aspects of the attitude (i.e., lack of
homogeneity - scale no longer measures one
concept, but two or more.
85- Even when the scale is homogeneous, the
instrument can be fastidious, time consuming
and/or redundant. - Researchers usually use multiple indicators when
inferring attitudes i.e., Reduce measurement
error and increase objectivity.
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