Research Methods Flashcards
Case study
An in depth examination of a rare event
Pro and con of case study
Pro: Examine rare instances
Con: Cannot be applied to general population
Naturalistic observation
A research method, commonly used by psychologists that includes observing subjects in their natural environment
Correlation
Statistical measurement between variables to show relationship
Experimental
Hypothesis that is scientifically tested
Survey
A data collection tool used to gather information about individuals
Pro and con of correlational study
Pro: attempts to show relationship between variables
Con: correlation is not a causation
Pro and con of experimental study
Pro: manipulation of variables and shows cause and effect
Con: time consuming
Pro and con of survey study
Pro: cheap and allow large number of subjects
Con: participant bias and questions can be framed
Hindsight bias
Viewing events that happened as more predictable that they are
Operational definition
Statement of how you will measure the behaviors
Replication
Referring to the repetition of a research study, generally with different situations and different subjects
Range
Subtracting the smallest observations from the greatest and provides an indication of statistical dispersion
Normal curve
When all measures of central tendency occur at the highest point in the curve (bell shaped)
Statistically significant
Relationship with a variable not due to chance
Generalize
The tendency to respond in the same way to different but similar stimuli
Sample
The group of people out of a population who take park in the study
Population
The total group of individuals from which the sample might be drawn
Random sampling
Each member of the population has an equal chance of being selected to represent the whole
Random assignment
Use of chance procedures in psychology to ensure that each participant has the same opportunity to be assigned to a certain group
Stratified sampling
The researcher divides the entire population into different subgroups then randomly selects the final subjects proportionally from the different strata
Participant bias
The results become non-representative because the participants possess certain traits that effect the outcome
Variables
Anything that can vary, or change- applies to experimental investigations
Confounding variables
Extra variables that can influence the study