Research Methods Flashcards
basic research
driven by curiosity; for the sake of science
examples of basic research
neuroscience, cognitive, developmental, social
applied research
has a clear purpose
examples of applied research
clinical, educational, forensic
Why is psychological research important?
- reduces bias
- systematic
scientific method
- theory
- hypothesis
- research
- support/refute theory
What makes a good theory?
falsifiable: there is evidence to either support or refute the theory
What makes a good hypothesis?
specific and testable
population
everyone in the group that the experimenter is interested in
sample
a subset of a population
random assignment
assigning participants randomly to experimental conditions
random sampling
every person in the population has an equal chance of being selected
Why is random sampling important?
- eliminates the chance of third variables
- allows for generalization
convenience sampling
consists of people who are conveniently available for the study
correlational research design
measures how closely two factors/variables vary together
variable
a property whose value can vary at any given time
positive correlation
↑↑
negative correlation
↑↓ or ↓↑
zero correlation
one variable not predictably related to the other