“…As Booth (2002, p. 378) stated “If there are universals, they must be discovered,” and for the reasons mentioned above, we think it is plausible that g may be a universal property of cognitive data in humans—whether or not a cultural group describes “intelligence” in a way similar to Western definitions. While there have been scattered reports of g in nations throughout the world (e.g., Church & Katigbak, 1987; Claeys, 1972; Guthrie, 1963; Miron, 1975; Proctor, Kranzler, Rosenbloom, Martinez, & Guevara-Aguire, 2000; Rothhammer & Llop, 1976; Vernon, 1961, 1965b), in this study we aim to systematically compile as many data sets as possible from non-Western populations in developing nations and determine whether each one produces a general cognitive ability factor using a uniform factor analysis methodology. In this way we hope to put g theory to a strongly falsifiable empirical test and to test whether g theory has limits in its applicability across human cultures.…”