Parents and child care personnel in English-dominant parts of the world often express misgivings about raising children bilingually. Their concerns are based on the belief that dual language learning during the infant-toddler stage confuses children, delays their development, and perhaps even results in reduced language competence. In this…

Re-examines research literature supporting the idea that infants and young children simultaneously learning two languages mix elements from the two languages. It is argued that, contrary to most extant interpretations, bilingual children develop differentiated language systems from the beginning and are able to use their developing languages in…

The notion that second language instruction is more effective if begun at an early age is seen as arising from cognitive-nativist and neuropsychological postulates, and from the argument of "affective purity." Each of these positions is reviewed, along with frequently-heard objections to each. A fresh perspective on the issue is thus…