Ecological validity

In research, the ecological validity of a study is the extent to which the materials and setting of the study approximate to the real-world context that is being examined.[1] Unlike internal and external validity, ecological validity is not necessary to the overall validity of a study.[2]

For the ecological validity of a cue in perception, see ecological validity (perception).

The original meaning of 'ecological validity' defines it narrowly as a property of stimuli in perceptual experiments.[3]

Vs. Realism and external validity

The term "ecological validity" is now widely used by researchers unfamiliar with the origins and technical meaning of the term to be broadly equivalent to what Aronson and Carlsmith (1968) called "mundane realism." Mundane realism references the extent to which the experimental situation is similar to situations people are likely to encounter outside the laboratory. For example, mock-jury research is designed to study how people might act if they were jurors during a trial, but many mock-jury studies simply provide written transcripts or summaries of trials, and do so in classroom or office settings. Such experiments do not approximate the actual look, feel, and procedure of a real courtroom trial, and therefore lack mundane realism. The better-recognized concern is that of external validity: if the results from such a mock-jury study are reproduced in and generalize across trials where these stimulus materials, settings, and other background characteristics vary, then the measurement process may be deemed externally valid.

References

[4]

gollark: It doesn't matter if it's "not real intelligence" if it is a very effective paperclip-making tool and turns you into paperclips.
gollark: It isn't very fast but at least better than expected.
gollark: My phone mysteriously stopped working, and I'm now actually quite surprised with how well Discord runs on my ancient spare one.
gollark: [SUPERIOR BRAIN SYMBOL] geesegeese, actually.
gollark: The lead probably wouldn't stop neutrinos, but I don't think you can do anything interesting with those with random computing hardware.

See also

References
  1. Brewer, M. (2000). Research Design and Issues of Validity. In Reis, H. and Judd, C. (eds) Handbook of Research Methods in Social and Personality Psychology. Cambridge:Cambridge University Press.
  2. Shadish, W., Cook, T., and Campbell, D. (2002). Experimental and Quasi-Experimental Designs for Generalized Causal Inference Boston:Houghton Mifflin.
  3. Hammond, Kenneth R. (September 1998). "Ecological Validity: Then and Now". University at Albany. Retrieved 31 January 2017.
  4. Aronson, E., & Carlsmith, J. M. (1968). Experimentation in social psychology. In G. Lindzey & E. Aronson (Eds.), The handbook of social psychology (2nd ed., Vol. 2, pp. 1-79). Reading, MA: Addison-Wesley.
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