>James Flynn, namesake of the secular increase, finally agrees that these IQ gains are not g factor gains [1], but believes that they still represent economical

>James Flynn, namesake of the secular increase, finally agrees that these IQ gains are not g factor gains [1], but believes that they still represent economically relevant skill gains. This is doubtful for two reasons: first, because measures of aca- demic ability over time do not reveal any concomitant Flynn-like gains [2, p. 8; 3]. Second, because we know from large-scale military re- search that almost all the predictive power of IQ tests in training contexts comes through g alone [4, p. 129]. [1] Flynn, JR. The Flynn Effect: Rethinking intelligence and what affects it [2] Flynn JR. Searching for justice: the discovery of IQ gains over time. Am Psychol 1999;54:5–20. [3] Flynn JR, Weiss LG. American IQ Gains From 1932 to 2002: The WISC Subtests and Educational Progress. Int J Test 2007;7:209–24. [4] Ree MJ, Earles JA. The ubiquitous productiveness of g. In: Rumsey MG, Walker CB, Harris JH, editors. Personnel selection and classification. Hillsdale, NJ: Lawrence Erl- baum; 1994. p. 127–36.