This document discusses language learning aptitude, which refers to an individual's ability to learn a second language. It covers several key points:
1) Researchers like Carroll have identified various factors that contribute to language aptitude, including phonemic coding ability, grammatical sensitivity, inductive language learning ability, and rote learning ability.
2) Studies have shown aptitude is strongly correlated with second language proficiency, though all learners can achieve some proficiency regardless of aptitude. Aptitude enhances the rate and ease of learning.
3) Skehan proposed aptitude involves three components - auditory ability, linguistic ability, and memory ability - that relate to different phases of the second language acquisition process.