Bilingualism is a common phenomenon in India. We are all instinctively bilingual. A large proportion of the world's population is bilingual. A bilingual speaking to the other bilingual chooses the language unconsciously or semi-consciously with no extra time or effort. Language alternation has become significant in the Indian context in view of…

The existence of a global language proficiency factor is discussed. This factor, cognitive/academic language proficiency (CALP), is directly related to IQ and to other aspects of academic achievement. It accounts for the bulk of reliable variance in a wide variety of language learning measures. Three propositions concerning CALP are reviewed. (1)…