What is CALP primarily used for?

CALP, or Cognitive Academic Language Proficiency, refers to the language skills required to understand and produce language that is used in academic settings. It encompasses the ability to engage with complex vocabulary, abstract concepts, and specific discourse styles that are typical in educational environments. This type of language proficiency is crucial for success in school, as it involves the ability to read, write, and communicate effectively in subject areas like math, science, and literature.

CALP is distinct from other forms of language proficiency because it typically develops over a longer period, often taking five to seven years to reach a level comparable to that of native speakers. This contrasts sharply with Basic Interpersonal Communicative Skills (BICS), which refers to the conversational language skills needed for everyday social interactions. While both forms of proficiency are essential, CALP specifically addresses the linguistic demands of formal education, making it the correct answer in the context of this question.