“…Studies using the CDI-WS and the LDS in English demonstrate that at 2;0 the vocabulary of the top 10% of children is almost nine times larger than the vocabulary of the bottom 10% of children Rescorla & Achenbach, 2002). Individual variation in early vocabulary has also been reported among children acquiring Spanish (Bornstein, Cote, Maital, Painter, Park & Pascual, 2004 ;Jackson-Maldonado, Thal, Marchman, Bates & Gutierrez-Clellen, 1993), Italian (Camaioni & Longobardi, 1995 ;Caselli et al, 1995), Hebrew (Maital, Dromi, Sagi & Bornstein, 2000) and Japanese (Tamis-LeMonda, Bornstein, Cyphers, Toda & Ogino, 1992). Gender differences in early lexical development have also been widely reported (Rescorla, 1989 ;Rescorla & Achenbach, 2002;Fenson, Dale, Reznick, Bates, Thal & Phethick, 1994), with girls typically having somewhat larger reported vocabularies than boys.…”