Examined the pattern of deletion of final "/t/" and "/d/" in word final consonant clusters in 3- and 4-year-old children (n=16) and their degree of mastery of phonological and grammatical constraints. Results indicate that children as young as three had mastered the phonological constraints on (-t, d) deletion and that the…

Tests the universality hypothesis of language acquisition by asking young monolingual English and Japanese children to verify true affirmatives, false affirmatives, false negatives, and true negatives. The hypothesis was not supported in the case of Japanese-speaking children. A theory of cross-linguistic language acquisition is proposed.…