In defense of external invalidity

  • Mook D
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Abstract

Many psychological investigations are accused of "failure to generalize to the real world" because of sample bias or artificiality of setting. It is argued in this article that such "generalizations" often are not intended. Rather than making predic- tions about the real world from the laboratory, we may test predictions that specify what ought to hap- pen in the lab. We may regard even "artificial" find- ings as interesting because they show what can occur, even if it rarely does. Or, where we do make gener- alizations, they may have added force because of artificiality of sample or setting. A misplaced preoc- cupation with external validity can lead us to dismiss good research for which generalization to real life is not intended or meaningful.

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  • defense of "external invalidity" of psychological experiments for which generalization to real life is not intended or meaningful

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Authors

  • Douglas G. Mook

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