In this video I explain external validity (or ecological validity) and criticisms of artificiality that can arise from laboratory experimentation. I also explain naturalistic observation and field experiments as ways of overcoming artificiality and collecting real-life data, though both of these approaches have the disadvantage of sacrificing control over potential confounding variables.

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Enable closed-captioning or find a full transcript of this video here: http://www.psychexamreview.com/external-validity/

Need more explanation? Check out my full psychology guide: Master Introductory Psychology: http://amzn.to/2eTqm5s