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Is mood improved by a psychobiotic diet? The IV is
Psychobiotic diet
A controlled experiment type - participants are in one group only
Between subjects
A short personal story or experience
Anecdote
A controlled experiment type - participants are in both the control and experimental conditions
Within subjects
A controlled experiment type - there can be two IVs or a pre and post test
Mixed design
The name of the group used in the research
Sample
The entire group of research interest
Population
Variables that are kept constant by the researcher
Controlled
A variable other than IV that HAS effected the DV
Confounding
A variable other than the IV that MAY influence the DV
Extraneous
Sampling type - every member of population has EQUAL CHANCE of being selected
Random
Sampling type - the sample is PROPORTIONATELY REPRESENTATIVE of the population on a particular characteristic
Stratified
Methodology type - An in-depth investigation of an individual or group
Case study
Methodology type - observing and interacting with a selected environment
Fieldwork
Methodology type - gather and analyse secondary data
Literature review
Methodology type - used to see if there is an association between two variables (but these are not controlled by the experimenters)
Correlational study
