A British longitudinal study of language acquisition was followed up for further information on the relationship between language acquisition, language aptitude, and second language learning. One of the original cohorts (n=23), now in secondary school, was originally studied for native language learning achievement and was now being studied for…

Two studies at the Defense Language Institute (California) investigated the contribution of several variables to prediction of post-language-training proficiency: (1) scores on a general vocational aptitude battery and a language aptitude battery, both used to screen potential students; (2) scores on other cognitive measures not used in the…