“…Specifically, we first controlled for age of child, and then entered gender, parity (first-/only-vs. later-borns), monolingual status (mono-vs. multilingual) and number of respondents as a second step, then added parental education at the third step, and finally, location as a final step. -Ginsberg, 1998 ;Rescorla & Achenbach, 2002) that the presence of siblings and multiple language backgrounds can have significant negative effects on vocabulary development (but see Patterson, 2004). Although 3% may not seem to be a large proportion of the variance, it is important to consider that number of respondents did not account for any variance whatsoever in our sample (in contrast to recent reports by de Houwer, Bornstein & Leach, 2005) and, taken together, gender, monolingual status and birth order also did not account for any more of the variance than location alone.…”