Psychology Studies Sample WEIRD Humans

[This paper is] about another exotic group: people from Western, Educated, Industrialized, Rich, and Democratic (WEIRD)societies. In particular, it’s about the Western, and more specifically American, undergraduates who form the bulk of the database in the experimental branches of psychology, cognitive science, and economics, as well as allied fields(labeled the “behavioral sciences”). [...] Who are the people studied in behavioral science research? A recent analysis of the top journa...

 The Importance of Large Samples

Any experiment may be regarded as forming an individual of a 'population' of experiments which might be performed under the same conditions. A series of experiments is a sample drawn from this population. Now any series of experiments is only of value in so far as it enables us to form a judgment as to the statistical constants of the population to which the experiments belong. In a great number of cases the question finally turns on the value of a mean, either directly, or as the mean diffe...