What is the value of psychology research?
Our opinions about why we behave can be mistaken; not everything is intuitive or common sense
What is hindsight bias?
The tendency to be overconfident about predicting outcomes and to overestimate common sense
First step in social psychology research
State a problem for the study
Second step in social psychology research
Formulate a testable hypothesis
Third step in social psychology research
Design a study to test the hypothesis and collect data
Fourth step in social psychology research
Use statistical methods to test whether data are consistent or inconsistent with the hypothesis
Final step in social psychology research
Report results to the scientific community via a journal manuscript
What is a hypothesis?
A specific, testable prediction about the relationship between variables derived from theory and evaluated using empirical data
Ex of casual hypothesis: Watching violent television causes an increase in aggressive behavior
Ex of a correlational hypothesis: There is a positive association between watching violent television and aggression levels
What is a theory?
A set of related propositions intended to describe a phenomenon or aspect of the world
How are theories supported?
By empirical evidence
How do theories differ from hypotheses?
Theories are more general
What is basic research?
Research aimed at understanding a phenomenon in its own right
What is applied research?
Research aimed at solving real-world problems
What is an intervention?
A connection between basic and applied research where theories lead to real-world applications
What is observational research?
Observing social situations in a semi-formal way
Who commonly uses observational research?
Child and developmental psychologists and anthropologists
What is archival research?
Analyzing social behavior documented in past records
Ex.) Newspapers, police reports, hospital records
What are surveys?
Interviews or written questionnaires.
Main limitation of surveys
Results may be limited if the sample is biased.
What is a population of interest?
The specified group of people you want to study
What is a sample?
A subset of the population of interest
What is random sampling?
Everyone in the population has an equal chance of being selected
What is convenience sampling?
Selecting participants from an easily available subgroup
Problem with convenience sampling
It creates bias.
Ex.) 1936 Literary Digest presidential election poll