RT Journal A1 Robertson CT, Hendson L, Biggs WG, Acton BV T1 APplication of the flynn effect for the bayley iii scales JF Archives of Pediatrics & Adolescent Medicine JO Archives of Pediatrics & Adolescent Medicine YR 2010 FD November 1 VO 164 IS 11 SP 1072 OP 1073 DO 10.1001/archpediatrics.2010.199 UL http://dx.doi.org/10.1001/archpediatrics.2010.199 AB The Bayley Manual3 provides information about the Flynn effect, as mentioned in the Victorian Study.1(p355) The Bayley-III manual sample of 102 children gives the average Mental Developmental Index (MDI) of the Bayley Scales of Infant Development–II (BSID-II) to be 93.9 and the Bayley-III Cognitive and Language Composite Scores (CSs) to be 102 and 99.7, respectively.3 The latter CS differences from the MDI are 8.1 and 5.8 points, with corresponding correlations of 0.60 and 0.71.3(p77) Overall, Bayley-III CSs are 7 points higher than those of the BSID-II, and thus show a reverse Flynn effect.