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How did southerners react to the letter about an apologetic felon who had killed his fiance's lover?
Southerners were more sympathetic than northerners
How are the reasons for many of our behaviors described?
They are unconscious and immune to introspection
Can we be mistaken about the reasons for our own behaviors?
Yes
What does hypothesizing help avoid?
Hindsight bias
Hindsight bias
The tendency to believe that after learning some outcome that you could have predicted it when in fact you may not have been able to predict it at all
What should you do if you cannot conduct a study?
Simply thinking about how you might test your hypothesis can lead to new ideas, that upon reflection, might surpass your initial speculation aka a thought experiment
Are thought experiments replacements for actual experiments?
No
Hypothesis
A prediction about what will happen under specific circumstances
Theory
A set of related propositions intended to describe some phenomenon or aspect of the world
What are theories backed by?
Empirical data
What kind of predictions result from theories?
They are surprising except in light of the theory
What can theories lead to?
More hypotheses to explore that are made in the framework of that theory
Dissonance theory
People like their thoughts to be consistent with one another and with their actions and will do substantial mental work to achieve such cognitive consistency
What is the first step in scientific research?
Look at a phenomenon in a systematic way, with a view to understanding what’s going on, and coming up with hypotheses about why things are the way they are
Participants observation
Involves observing some phenomenon at close range
How do anthropologists sometimes gather observations?
They may live with a group of people for a long time
Barker and Wright study; anthropology study example
Children were followed around town as they did everything to observe how they interact with their environment
How do social psychologists often make observations?
In semiformal ways, taking notes and interviewing participants
What weakness do observations have?
They can be misleading
How should one deal with observations’ weakness?
Observations should be verified using other methods
Where is archival research conducted?
At the library or at your computer
What kind of archives do researchers look at?
Census reports, police records, sports statistics, newspaper articles, and databases containing ethnographic(anthropological) descriptions of people in various cultures
What did researchers discover when looking at FBI homicide reports?
Homicides were more common in the south(Nisbett, 1993)
What causes of murders were more common in the south?
Murders as a result of insult, barroom fight, or Sexual infidelity(Nisbett and Cohen, 1996)
What types of murders are less common in the south?
Any murder that doesn’t involve an honor component
In what formats are surveys conducted?
With written questionnaires and interviews
What type of people should take the survey?
They must be representative of the target population
What is the best way to obtain a representative sample?
You must select potential respondents randomly
What must you do to obtain a random sample?
You must give everyone an equal chance of being chosen
Convenience sampling
Contacting people as they enter the library or emailing fraternity or sorority members; it is not random and it may be biased in some way
Biased
It might include too many of one type of people and too few of others
Which surveys should you typically ignore?
The ones touted in magazines
Why should you ignore surveys touted in magazines?
They often survey their own readers who are a particular type that like to read that magazine
How do southerners and northerners from the US feel about violence?
Southerners are more likely than northerners to approve the use of violence in various situations, including defending your home and spanking your children
How did anthropologists explain the reasons behind southerners’ and northerners' feelings about violence?
They found Northerners descended from farmers and farmers tend to be peaceful, but southerners descend from shepherds and shepherds tend to be sensitive to insults and are afraid of losing their flock
Correlational research
Psychologists measure two or more variables and examine whether they are related
Experimental research
Enables researchers to make strong inferences about Why a relationship exists or how different situations affect people's behaviors
What is a good way to begin your inquiry?
Look for correlations
Why must correlations be tested before they are considered significant?
Does variable 1 influence variable 2, or is it the other way around? Or is there a third unseen variable that affects them?
Self-selection
The participant rather than the researcher, the participants’ level of each variable
What problem does self-selection create?
Other unknown properties might be responsible for the observed relationship
How is the strength of a correlational relationship graded?
From 0 to -1 or +1
What does a 0 mean for a correlational relationship?
There is no relationship at all
What does a +1 grading mean for a correlational relationship?
One variable is high while the other variable is also high
What does a .1 grading mean for correlational relationship?
It is weak
What does a .3 grading mean for a correlational relationship?
It's a moderate relationship
What does a .5 or higher grading mean for a correlational relationship?
It is a strong relationship
Why should scientific studies reported in the media be taken with a grain of salt?
They usually come from correlational studies which may or may not show a causal relationship
Why are correlational studies valuable?
They can point you to several possible variables
Longitudinal study
A study where data is collected at different points in time from the same participants
What is the best way to be sure about causality?
Experimentation
Independent variable
Assumed to be the cause of some particular outcome
Dependent variable
The outcome, which is measured
Who determines the level of the independent variable?
The researchers
In what ways is the dependent variable measured?
Verbal reports, behavior, physiological measures, or neural measures
What is an example of a verbal report?
Statements about degree of anger or anxiety
Control condition
A condition comparable to the experimental condition in every way except that it lacks the one ingredient hypothesized to produce the expected effect on the dependent variable
Random assignment
Assigning participants in experiments to different conditions randomly
What is the purpose of random assignment?
It makes the types of people in the different conditions roughly equal
What are some limits that experiments have?
Sometimes they are difficult to conduct or unethical
Natural experiment
A naturally occurring event or phenomenon with somewhat different conditions that can be compared with almost as much rigor as conditions manipulated by the investigator in an experiment
What is an example of a natural experiment?
In the 70s, when Sesame Street first came out, not all areas had the ability to broadcast it. It was found that in areas that could watch Sesame Street, children had higher grades
External validity
How well the results of a study generalize to contexts outside the conditions of a lab
Why is external validity so important?
The purpose of research is to be directly relevant to events of the outside world
When is external validity not essential?
When the purpose is to clarify assumptions, general idea or theory
What happened when American participants were shown repeatedly images of fake Chinese characters?
Words and characters that were presented many times were more likely by participants to be thought to have positive meanings