validity and variables Flashcards
what is a confounding variable?
a variable that varies with the IV and changes the DV
- eg time or day
what are extraneous variables?
effect the DV because people will never be evenly distributed across two conditions
- eg memory ability
what is validity?
whether an observed effect is a genuine one
what is internal validity?
the degree to which an observed effect was due to experimental manipulation rather than other factors
what is external validity?
the degree to which research findings can be generalised to other settings(ecological), groups of people(population) and over time (historical)
what is mundane realism?
refers to how a study mirrors the real world and the research environment is realistic