copyright © allyn & bacon 2005 1 chapter 1 introduction to social psychology this multimedia...
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Copyright © Allyn & Bacon 20051
Chapter 1Chapter 1
Introduction to Social Psychology
Introduction to Social Psychology
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Copyright © Allyn & Bacon 20052
How can you tell if another person is attracted to you?
How can you tell if another person is attracted to you?
Copyright © Allyn & Bacon 20053
In most mammalian species, a female raises offspring with no
help from the male.
In most mammalian species, a female raises offspring with no
help from the male.
Why are homo sapiens one of the rare exceptions?
Why are homo sapiens one of the rare exceptions?
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Space BlasterSpace Blaster
Doomsday Doomsday Version 2.5Version 2.5Doomsday Doomsday Version 2.5Version 2.5
Does playing violent video games increase aggressiveness?
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Chapter OutlineChapter Outline
What is Social Psychology?
Major Theoretical Perspectives
Basic Principles
Research Methods
The Network of Knowledge
What is Social Psychology?
Major Theoretical Perspectives
Basic Principles
Research Methods
The Network of Knowledge
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What is Social Psychology?What is Social Psychology?
Social psychology –the scientific study of how people’s thoughts, feelings, and behaviors are influenced by other people
Social psychology –the scientific study of how people’s thoughts, feelings, and behaviors are influenced by other people
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Scientific Description and Explanation
Scientific Description and Explanation
Social Psychology, like any science, involves:
Description –careful and reliable observation
Explanation –development of theories that connect and organize observations
Social Psychology, like any science, involves:
Description –careful and reliable observation
Explanation –development of theories that connect and organize observations
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Scientific Description and Explanation
Scientific Description and Explanation
Theories are scientific explanations that:
Connect and organize existing observations
Suggest fruitful paths for future research.
Theories are scientific explanations that:
Connect and organize existing observations
Suggest fruitful paths for future research.
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SocioculturalSociocultural
EvolutionaryEvolutionary
Social LearningSocial Learning
Social CognitiveSocial CognitiveClick On Any Click On Any PerspectivePerspective
Major Theoretical PerspectivesMajor Theoretical Perspectives
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Sociocultural PerspectiveSociocultural Perspective
Sociocultural perspective –a theoretical viewpoint that searches for the causes of social behavior in influences from larger social groups
Sociocultural perspective –a theoretical viewpoint that searches for the causes of social behavior in influences from larger social groups
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Sociocultural PerspectiveSociocultural Perspective
What drives social behavior?
Forces in larger social groups such as:
norms within cultural groups
social class differences
nationality/ethnicity
fads
What drives social behavior?
Forces in larger social groups such as:
norms within cultural groups
social class differences
nationality/ethnicity
fads
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Sociocultural PerspectiveSociocultural Perspective
Sociocultural theorists might ask:
What are the differences in social behavior across cultures?
For example, women in some societies marry more than one man (polyandry).
Sociocultural theorists might ask:
What are the differences in social behavior across cultures?
For example, women in some societies marry more than one man (polyandry).
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Sociocultural PerspectiveSociocultural Perspective
Social norm –a rule or expectation for appropriate social behavior
Culture –the beliefs, customs, habits, and language shared by the people living in a particular time and place
Social norm –a rule or expectation for appropriate social behavior
Culture –the beliefs, customs, habits, and language shared by the people living in a particular time and place
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esearchesearch Culture, Choice, andIntrinsic MotivationCulture, Choice, andIntrinsic Motivation
American culture teaches children to cherish their own individual choice and independence.
But Asian culture emphasizes more collective values – viewing the self as interdependent with family and social group.
American culture teaches children to cherish their own individual choice and independence.
But Asian culture emphasizes more collective values – viewing the self as interdependent with family and social group.
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Culture, Choice, andIntrinsic MotivationCulture, Choice, andIntrinsic Motivation
In one study, researchers asked Anglo-American and Asian-American children to solve word puzzles that were either:
Chosen by the child (Personal Choice),
Chosen by the experimenter, or
Chosen by the child’s mom.
In one study, researchers asked Anglo-American and Asian-American children to solve word puzzles that were either:
Chosen by the child (Personal Choice),
Chosen by the experimenter, or
Chosen by the child’s mom.
esearchesearch
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Personal Choice
Personal Choice
Iyengar & Lepper, 1999
Experimenter Choice
Experimenter Choice
But Asian-American children were more
motivated when their mothersmothers had chosen the
task
But Asian-American children were more
motivated when their mothersmothers had chosen the
task
Number of Word Puzzles Completed
Number of Word Puzzles Completed
Anglo AmericanAnglo
American Personal choicePersonal choice enhanced
motivation for Anglo-American
children
Personal choicePersonal choice enhanced
motivation for Anglo-American
children
Asian American
Asian American
Mom ChoiceMom
Choice
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Evolutionary PerspectiveEvolutionary Perspective
Evolutionary perspective –a theoretical viewpoint that searches for the causes of social behavior in the physical and psychological predispositions that helped our ancestors survive and reproduce
Evolutionary perspective –a theoretical viewpoint that searches for the causes of social behavior in the physical and psychological predispositions that helped our ancestors survive and reproduce
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Evolutionary PerspectiveEvolutionary Perspective
What drives social behavior?
Genetic predispositions inherited from our ancestors that promoted their survival and reproduction, such as:
The tendency to automatically recognize an angry face
The tendency for mothers to feel protective of their children
What drives social behavior?
Genetic predispositions inherited from our ancestors that promoted their survival and reproduction, such as:
The tendency to automatically recognize an angry face
The tendency for mothers to feel protective of their children
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Evolutionary PerspectiveEvolutionary Perspective
Natural selection –the process by which characteristics that help animals survive and reproduce are passed on to their offspring
Natural selection –the process by which characteristics that help animals survive and reproduce are passed on to their offspring
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Natural SelectionNatural Selection
Animals with features suited to the demands of the environment will survive better than those with less well-adapted features.
Those well-adapted animals will reproduce more successfully.
Animals with features suited to the demands of the environment will survive better than those with less well-adapted features.
Those well-adapted animals will reproduce more successfully.
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Evolutionary PerspectiveEvolutionary Perspective
Adaptation –a characteristic well designed for survival and reproduction in a particular environment
Adaptation –a characteristic well designed for survival and reproduction in a particular environment
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Evolutionary PerspectiveEvolutionary Perspective
Evolutionary theorists might ask:
Are there similarities in social behavior across species?
What are the similarities in social behavior across cultures and historical periods?
Evolutionary theorists might ask:
Are there similarities in social behavior across species?
What are the similarities in social behavior across cultures and historical periods?
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Age Preferencesin Mates
Age Preferencesin Mates
One example of a seemingly universal feature of social behavior is the difference between men and women in the preference for younger versus older partners.
The next slide shows the minimum and maximum ages specified in singles ads in the U.S.
One example of a seemingly universal feature of social behavior is the difference between men and women in the preference for younger versus older partners.
The next slide shows the minimum and maximum ages specified in singles ads in the U.S.
esearchesearch
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10s10s
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20s20s 30s30s 40s40s 50s50s 60s60s
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MALE'S AGEMALE'S AGE FEMALE'S AGEFEMALE'S AGE
DIF
FE
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NC
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RO
MD
IFF
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FR
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TA
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Oldest preferredOldest preferred
Youngest preferredYoungest preferred
Young men show no Young men show no particular preference for particular preference for younger partners, but younger partners, but older men prefer partners older men prefer partners younger than themselvesyounger than themselves
Women of all ages ask for Women of all ages ask for men around their own men around their own age or olderage or older
Kenrick & Keefe, Behavioral & Brain Sciences, (1992)
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10s10s
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20s20s 30s30s 40s40s 50s50s 60s60s
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MALE'S AGEMALE'S AGE FEMALE'S AGEFEMALE'S AGE
DIF
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Oldest preferredOldest preferred
Youngest preferredYoungest preferred
MarriagesMarriages show a show a similar patternsimilar pattern
Kenrick & Keefe, Behavioral & Brain Sciences, (1992)
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2020
1010
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-20-2020s20s 30s30s 40s40s >50>50
MALE'S AGEMALE'S AGE FEMALE'S AGEFEMALE'S AGE
10s10s 20s20s 30s30s 40s40s >50>5010s10s
DIF
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Oldest preferred Oldest preferred
Youngest preferredYoungest preferred
Phoenix Singles AdsPhoenix Singles Ads
The same pattern was found The same pattern was found on a remote island in the on a remote island in the Philippines throughout the Philippines throughout the century century
PORO – 1913 - 1929PORO – 1913 - 1929
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Social Learning PerspectiveSocial Learning Perspective
Social learning perspective –a theoretical viewpoint that focuses on past learning experiences as determinants of a person’s social behaviors
Social learning perspective –a theoretical viewpoint that focuses on past learning experiences as determinants of a person’s social behaviors
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Social Learning PerspectiveSocial Learning Perspective
What drives social behavior?
Classically conditioned preferences
For example, the feeling of fear at sight of person who hit you.
Habits rewarded by other people
For example, a boy who fights frequently after his father praised him for winning fight with neighborhood bully.
What drives social behavior?
Classically conditioned preferences
For example, the feeling of fear at sight of person who hit you.
Habits rewarded by other people
For example, a boy who fights frequently after his father praised him for winning fight with neighborhood bully.
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Social Learning PerspectiveSocial Learning Perspective
What drives social behavior?
Imitating the rewarded behavior of others
For example, buying a gun after seeing a movie in which the hero wins true love after shooting half the people in his girlfriend’s neighborhood.
What drives social behavior?
Imitating the rewarded behavior of others
For example, buying a gun after seeing a movie in which the hero wins true love after shooting half the people in his girlfriend’s neighborhood.
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Learning Violence From Video Games
Learning Violence From Video Games
One team of researchers hypothesized that violent video games may make aggression rewarding, by allowing a person to win points for killing and maiming human-like opponents (Anderson & Dill, 2000).
One team of researchers hypothesized that violent video games may make aggression rewarding, by allowing a person to win points for killing and maiming human-like opponents (Anderson & Dill, 2000).
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Learning Violence From Video Games
Learning Violence From Video Games
In an experiment, students first played a violent video game (Wulfenstein) or a nonviolent game (Tetrix).
They then played a competitive game in which they could retaliate against real opponents by delivering unpleasantly loud blasts of noise.
In an experiment, students first played a violent video game (Wulfenstein) or a nonviolent game (Tetrix).
They then played a competitive game in which they could retaliate against real opponents by delivering unpleasantly loud blasts of noise.
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8585
8080
Nonviolent Nonviolent
Anderson & Dill, 2000
ViolentViolent
Retaliatory Aggression (unpleasant noise level)
Retaliatory Aggression (unpleasant noise level)
Students who played a violent
video game demonstrated significantly
higher levels of retaliatory aggression
Students who played a violent
video game demonstrated significantly
higher levels of retaliatory aggression
Type of Videogame Type of Videogame
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Social Cognitive PerspectiveSocial Cognitive Perspective
Social cognitive perspective –a theoretical viewpoint that focuses on the mental processes involved in paying attention to, interpreting, and remembering social experiences
Social cognitive perspective –a theoretical viewpoint that focuses on the mental processes involved in paying attention to, interpreting, and remembering social experiences
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Social Cognitive PerspectiveSocial Cognitive Perspective
What drives social behavior?
What we pay attention to
How we interpret and judge social situations
What we retrieve from memory
People notice the behaviors of group members who are in a minority, and exaggerate the significance of the things they do.
What drives social behavior?
What we pay attention to
How we interpret and judge social situations
What we retrieve from memory
People notice the behaviors of group members who are in a minority, and exaggerate the significance of the things they do.
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From Chump to ChampFrom Chump to Champ
Research on social cognition suggests that our memory processes are often biased to make ourselves feel good.
For example, Anne Wilson and Michael Ross (2001) asked students to:
Describe yourself as you are now, or
As you were several years ago.
Research on social cognition suggests that our memory processes are often biased to make ourselves feel good.
For example, Anne Wilson and Michael Ross (2001) asked students to:
Describe yourself as you are now, or
As you were several years ago.
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44
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PastPast
Wilson & Ross, 2001
NowNow
Frequency of Self-Descriptions
Frequency of Self-Descriptions
Students described their
present selves as champs, with more positive
and fewer negative features than the chumps they used to be
Students described their
present selves as champs, with more positive
and fewer negative features than the chumps they used to be
Self-Description Self-Description
22
(+)(+) (-)(-)
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Sociocultural
Perspective
Evolutionary
What Drives Social Behavior?
Social Learning
Social Cognitive
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Forces in larger social groups Forces in larger social groups such as: norms, fads, social such as: norms, fads, social
class, ethnic identity,class, ethnic identity,
Sociocultural
Perspective
Evolutionary
What Drives Social Behavior?
Social Learning
Social Cognitive
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Genetic predispositions that Genetic predispositions that promoted our ancestors’ promoted our ancestors’
survival and reproduction, survival and reproduction, such as: the bond between such as: the bond between
parent and childparent and child
Sociocultural
Perspective
Evolutionary
What Drives Social Behavior?
Social Learning
Social Cognitive
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Classically conditioned Classically conditioned preferences preferences
Habits rewarded by others;Habits rewarded by others;
Imitation of behavior we have Imitation of behavior we have seen rewarded in othersseen rewarded in others
Sociocultural
Perspective
Evolutionary
What Drives Social Behavior?
Social Learning
Social Cognitive
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What we pay attention to; What we pay attention to; How we interpret and judge How we interpret and judge
social situations; social situations; What we retrieve from What we retrieve from
memorymemory
Sociocultural
Perspective
Evolutionary
What Drives Social Behavior?
Social Learning
Social Cognitive
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Basic Principles of Social Behavior
Basic Principles of Social Behavior
Social behavior is goal-oriented.
Social behavior represents a continual interaction between the person and the situation.
Social behavior is goal-oriented.
Social behavior represents a continual interaction between the person and the situation.
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Social Behavior is Goal-OrientedSocial Behavior is Goal-Oriented
At the surface level, we have many day-to-day goals.
Go shopping
Study for a test
Get a date for Saturday night
Etc.
At the surface level, we have many day-to-day goals.
Go shopping
Study for a test
Get a date for Saturday night
Etc.
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To establish social tiesTo establish social ties
To understand ourselves and othersTo understand ourselves and others
To gain and maintain statusTo gain and maintain status
To defend ourselves and those we valueTo defend ourselves and those we value
To attract and retain matesTo attract and retain mates
Social Behavior is Goal-OrientedSocial Behavior is Goal-Oriented
At the broadest level, we can categorize social goals into fundamental motives
At the broadest level, we can categorize social goals into fundamental motives
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The Interaction Between the Person and the Situation
The Interaction Between the Person and the Situation
By person, psychologists mean the features or characteristics that individuals carry into social situations.
By situation, psychologists mean the environmental events or circumstances outside the person.
Persons and situations influence one another in a number of ways.
By person, psychologists mean the features or characteristics that individuals carry into social situations.
By situation, psychologists mean the environmental events or circumstances outside the person.
Persons and situations influence one another in a number of ways.
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The Interaction Between the Person and the Situation
The Interaction Between the Person and the Situation
1. Different persons respond differently to the same situation.
Example: You may see a party as a welcome chance to make new friends; another person may see the same party as an unbearable ordeal.
1. Different persons respond differently to the same situation.
Example: You may see a party as a welcome chance to make new friends; another person may see the same party as an unbearable ordeal.
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The Interaction Between the Person and the Situation
The Interaction Between the Person and the Situation
2. Situations Choose the Person
Not everyone gets to enter every situation they would like.
Example: A tall person is more likely to be encouraged to play basketball; A short person to be a jockey.
2. Situations Choose the Person
Not everyone gets to enter every situation they would like.
Example: A tall person is more likely to be encouraged to play basketball; A short person to be a jockey.
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The Interaction Between the Person and the Situation
The Interaction Between the Person and the Situation
3. Persons Choose Their Situations
Example: Violence-prone people choose to watch violent films; Less violent people do not.
3. Persons Choose Their Situations
Example: Violence-prone people choose to watch violent films; Less violent people do not.
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The Interaction Between the Person and the Situation
The Interaction Between the Person and the Situation
4. Different Situations Prime Different Parts of the Person
Example: Around your professor, you may show your intellectual side; around an old friend who did not go to college, you may suppress it.
4. Different Situations Prime Different Parts of the Person
Example: Around your professor, you may show your intellectual side; around an old friend who did not go to college, you may suppress it.
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The Interaction Between the Person and the Situation
The Interaction Between the Person and the Situation
5. Persons Change The Situation
Example: A highly extraverted person can change a boring party into the social event of the season.
5. Persons Change The Situation
Example: A highly extraverted person can change a boring party into the social event of the season.
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The Interaction Between the Person and the Situation
The Interaction Between the Person and the Situation
6. Situations Change the Person
Example: After four years of college, your intellectual inclinations will probably be more prominent.
6. Situations Change the Person
Example: After four years of college, your intellectual inclinations will probably be more prominent.
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How Psychologists Study Social Behavior
How Psychologists Study Social Behavior
Hypothesis –a researcher’s prediction about what he or she will find
Hypothesis –a researcher’s prediction about what he or she will find
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How Psychologists Study Social Behavior
How Psychologists Study Social Behavior
Descriptive methods involve attempts to measure or record behaviors, thoughts or feelings in their natural state.
Experimental methods involve attempts to manipulate social processes by varying some aspect of the situation.
Descriptive methods involve attempts to measure or record behaviors, thoughts or feelings in their natural state.
Experimental methods involve attempts to manipulate social processes by varying some aspect of the situation.
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Naturalistic ObservationNaturalistic ObservationNaturalistic ObservationNaturalistic Observation
Case StudiesCase StudiesCase StudiesCase Studies
ArchivesArchivesArchivesArchives
SurveysSurveysSurveysSurveys
Psychological TestsPsychological TestsPsychological TestsPsychological Tests
Descriptive MethodsDescriptive Methods
Social psychologists use five major types of descriptive methods
Social psychologists use five major types of descriptive methods
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Descriptive Methods:Naturalistic Observation
Descriptive Methods:Naturalistic Observation
Naturalistic observation involves observing behavior as it unfolds in its natural setting.
Advantages:
Behaviors are spontaneous.
Doesn’t rely on people’s ability to report on their own experiences
Naturalistic observation involves observing behavior as it unfolds in its natural setting.
Advantages:
Behaviors are spontaneous.
Doesn’t rely on people’s ability to report on their own experiences
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Descriptive Methods:Naturalistic Observation
Descriptive Methods:Naturalistic Observation
Disadvantages:
Researcher may interfere with ongoing behavior.
Some interesting behaviors are very rare.
Observer bias –The researcher may selectively attend to certain events and ignore others.
This method is time consuming.
Disadvantages:
Researcher may interfere with ongoing behavior.
Some interesting behaviors are very rare.
Observer bias –The researcher may selectively attend to certain events and ignore others.
This method is time consuming.
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Descriptive Methods: Case studies
Descriptive Methods: Case studies
Case studies involve intensive examination of a single person or group.
Advantages:
Rich source of hypotheses
Allows studies of rare behaviors
Case studies involve intensive examination of a single person or group.
Advantages:
Rich source of hypotheses
Allows studies of rare behaviors
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Descriptive Methods: Case studies
Descriptive Methods: Case studies
Disadvantages:
Observer bias
Difficult to generalize findings from a single case
Impossible to reconstruct causes from complexity of past events
Disadvantages:
Observer bias
Difficult to generalize findings from a single case
Impossible to reconstruct causes from complexity of past events
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Descriptive MethodsDescriptive Methods
Researchers can also examine archives, or public records of social behaviors.
Advantages:
Easy access to large amounts of pre-recorded data.
Disadvantages:
Many interesting social behaviors are never recorded.
Researchers can also examine archives, or public records of social behaviors.
Advantages:
Easy access to large amounts of pre-recorded data.
Disadvantages:
Many interesting social behaviors are never recorded.
Copyright © Allyn & Bacon 200560
Descriptive Methods: The Survey MethodDescriptive Methods: The Survey Method
The survey method involves asking people questions about their beliefs and behaviors.
Advantages:
Allows study of difficult-to-observe behaviors, thoughts and feelings
The survey method involves asking people questions about their beliefs and behaviors.
Advantages:
Allows study of difficult-to-observe behaviors, thoughts and feelings
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Descriptive Methods: The Survey MethodDescriptive Methods: The Survey Method
Disadvantages:
People who respond may not be representative.
Social desirability bias –the tendency for people to say what they believe is appropriate or acceptable
Disadvantages:
People who respond may not be representative.
Social desirability bias –the tendency for people to say what they believe is appropriate or acceptable
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Descriptive Methods:Psychological Tests Descriptive Methods:Psychological Tests
Psychological tests involve attempts to assess an individual’s abilities, cognitions, motivations, or behaviors.
Advantages:
Allows measurement of characteristics that are not always easily observable
Psychological tests involve attempts to assess an individual’s abilities, cognitions, motivations, or behaviors.
Advantages:
Allows measurement of characteristics that are not always easily observable
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Descriptive Methods:Psychological Tests
Descriptive Methods:Psychological Tests
Disadvantages:
Tests may be unreliable (yielding inconsistent scores).
Tests may be reliable, but not valid (not measuring the actual characteristics they are designed to measure).
Disadvantages:
Tests may be unreliable (yielding inconsistent scores).
Tests may be reliable, but not valid (not measuring the actual characteristics they are designed to measure).
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Descriptive MethodsDescriptive Methods
The descriptive methods are useful in determining correlation.
Correlation –the extent to which two or more more variables are associated with one another
Correlation coefficient –a mathematical expression of the relationship between two variables
The descriptive methods are useful in determining correlation.
Correlation –the extent to which two or more more variables are associated with one another
Correlation coefficient –a mathematical expression of the relationship between two variables
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Descriptive MethodsDescriptive Methods
If we know two variables are highly correlated (e.g. ice cream sales are up on days when drowning incidents are highest), can we determine the causal relationship between them?
If we know two variables are highly correlated (e.g. ice cream sales are up on days when drowning incidents are highest), can we determine the causal relationship between them?
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Variable A(ice cream)
Variable A(ice cream)
Variable B(drowning)
Variable B(drowning)
Descriptive MethodsDescriptive Methods
Variable A could cause Variable B.
(Eating ice cream could cause cramps, which could lead to drowning)
Variable A could cause Variable B.
(Eating ice cream could cause cramps, which could lead to drowning)
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Descriptive MethodsDescriptive Methods
Variable B could cause Variable A.
(Parents could buy kids more ice cream to console them after their friends drown)
Variable B could cause Variable A.
(Parents could buy kids more ice cream to console them after their friends drown)
Variable A(ice cream)
Variable A(ice cream)
Variable B(drowning)
Variable B(drowning)
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Variable C(heat)
Variable C(heat)
Descriptive MethodsDescriptive Methods
Or a third variable could cause A and B.
(Heat leads people to eat ice cream and to swim, but the two aren’t directly linked)
Or a third variable could cause A and B.
(Heat leads people to eat ice cream and to swim, but the two aren’t directly linked)
Variable A(ice cream)
Variable A(ice cream)
Variable B(drowning)
Variable B(drowning)
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Descriptive MethodsDescriptive Methods
In order to determine causality we must turn to experimental methods.
In order to determine causality we must turn to experimental methods.
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Experimental MethodsExperimental Methods
An experiment is a research method in which the researcher sets out to systematically manipulate one source of influence while holding others constant.
An experiment is a research method in which the researcher sets out to systematically manipulate one source of influence while holding others constant.
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Experimental MethodsExperimental Methods
Independent variable –the variable manipulated by the experimenter
Dependent variable –the variable measured by the experimenter
Independent variable –the variable manipulated by the experimenter
Dependent variable –the variable measured by the experimenter
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Experimental MethodsExperimental Methods
Social psychologists use two major types of experimental methods:
Laboratory experiments
Field experiments
Social psychologists use two major types of experimental methods:
Laboratory experiments
Field experiments
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Experimental Methods:Laboratory ExperimentsExperimental Methods:Laboratory Experiments
Laboratory experiments involve the direct manipulation of (independent) variables and the observation of their effects on the behavior of other (dependent) variables.
Laboratory experiments involve the direct manipulation of (independent) variables and the observation of their effects on the behavior of other (dependent) variables.
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Experimental Methods:Laboratory ExperimentsExperimental Methods:Laboratory Experiments
Advantages:
Allows cause-effect conclusions
Allows control of extraneous variables
Advantages:
Allows cause-effect conclusions
Allows control of extraneous variables
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Experimental Methods:Laboratory ExperimentsExperimental Methods:Laboratory Experiments
Disadvantages:
Artificial situations may not represent relevant events as they naturally unfold (subjects’ responses may not be natural, since they know they are being observed).
Disadvantages:
Artificial situations may not represent relevant events as they naturally unfold (subjects’ responses may not be natural, since they know they are being observed).
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Experimental Methods:Field Experiments
Experimental Methods:Field Experiments
Field experiments involve the manipulation of independent variables using unknowing participants in natural settings.
Field experiments involve the manipulation of independent variables using unknowing participants in natural settings.
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Experimental Methods:Field Experiments
Experimental Methods:Field Experiments
Advantages:
Allow cause-effect conclusions
Subjects give more natural responses.
Disadvantages:
Although participants don’t know they’re being observed, situation still unusual.
Less control of extraneous factors than in laboratory experiments.
Advantages:
Allow cause-effect conclusions
Subjects give more natural responses.
Disadvantages:
Although participants don’t know they’re being observed, situation still unusual.
Less control of extraneous factors than in laboratory experiments.
Copyright © Allyn & Bacon 200578
Experimental MethodsExperimental Methods
Internal validity –the extent to which an experiment allows confident statements about cause and effect
External validity –the extent to which the results of an experiment can be generalized to other circumstances
Internal validity –the extent to which an experiment allows confident statements about cause and effect
External validity –the extent to which the results of an experiment can be generalized to other circumstances
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Experimental MethodsExperimental Methods
Random assignment –the practice of assigning subjects to treatments so each subject has an equal chance of being in any condition
Random assignment –the practice of assigning subjects to treatments so each subject has an equal chance of being in any condition
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Experimental MethodsExperimental Methods
Confound – a variable that systematically changes along with the independent variable, potentially leading to a mistaken conclusion about the independent variable
Confound – a variable that systematically changes along with the independent variable, potentially leading to a mistaken conclusion about the independent variable
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Experimental MethodsExperimental Methods
Demand characteristics –cues that make subjects aware of how the experimenter expects them to behave
Demand characteristics –cues that make subjects aware of how the experimenter expects them to behave
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Ethical IssuesEthical Issues
The American Psychological Association’s ethical guidelines for research includes:
1. Obtaining informed consent.
Informed consent – a research subject’s agreement to participate after being informed of any potential risks and his or her right to withdraw at any time without penalty
The American Psychological Association’s ethical guidelines for research includes:
1. Obtaining informed consent.
Informed consent – a research subject’s agreement to participate after being informed of any potential risks and his or her right to withdraw at any time without penalty
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Ethical IssuesEthical Issues
2. Fully debriefing subjects after the research is completed.
Debriefing –a discussion of procedures, hypotheses, and subject reactions at the completion of the study
2. Fully debriefing subjects after the research is completed.
Debriefing –a discussion of procedures, hypotheses, and subject reactions at the completion of the study
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Ethical IssuesEthical Issues
3. Evaluating the costs and benefits of the research procedures.
3. Evaluating the costs and benefits of the research procedures.
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How Does Social Psychology Fit into the Network of Knowledge?How Does Social Psychology Fit into the Network of Knowledge?
Social psychology is closely connected to other sub-disciplines of psychology, including developmental, personality, clinical, cognitive and physiological psychology.
Social psychology is closely connected to other sub-disciplines of psychology, including developmental, personality, clinical, cognitive and physiological psychology.
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Developmental
Area of Psychology
Personality
Clinical
Example of Common Question
Physiological
Environmental
Cognitive
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Does early exposure to Does early exposure to televised violence lead to televised violence lead to
increased aggressiveness in increased aggressiveness in later years?later years?
Area of Psychology Example of Common Question
Developmental
Personality
Clinical
Physiological
Environmental
Cognitive
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What individual differences What individual differences predict success in marital predict success in marital
relationships?relationships?
Area of Psychology Example of Common Question
Developmental
Personality
Clinical
Physiological
Environmental
Cognitive
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How do social dilemmas How do social dilemmas contribute to overpopulation contribute to overpopulation
and environmental and environmental destruction?destruction?
Area of Psychology Example of Common Question
Developmental
Personality
Clinical
Physiological
Environmental
Cognitive
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How do normal feelings of How do normal feelings of attachment go awry in attachment go awry in
obsessive love relationships?obsessive love relationships?
Area of Psychology Example of Common Question
Developmental
Personality
Clinical
Physiological
Environmental
Cognitive
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How do attention-demanding How do attention-demanding distractions contribute to our distractions contribute to our
ability to resist persuasive ability to resist persuasive messages?messages?
Area of Psychology Example of Common Question
Developmental
Personality
Clinical
Physiological
Environmental
Cognitive
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How do hormones like How do hormones like adrenaline and testosterone adrenaline and testosterone
contribute to aggression?contribute to aggression?
Area of Psychology Example of Common Question
Developmental
Personality
Clinical
Physiological
Environmental
Cognitive
Copyright © Allyn & Bacon 200593
How Does Social Psychology Fit into the Network of Knowledge?How Does Social Psychology Fit into the Network of Knowledge?
Social psychology also connects to other disciplines, including basic research sciences like biology and sociology as well as applied fields like organizational behavior and education.
Social psychology also connects to other disciplines, including basic research sciences like biology and sociology as well as applied fields like organizational behavior and education.