This longitudinal study examined the predictive validity of the MacArthur Communicative Developmental Inventories-Short Form (CDI-SF), a parent report questionnaire about children's language development (Fenson, Pethick, Renda, Cox, Dale & Reznick, 2000). Data were first gathered from parents on the CDI-SF vocabulary scores for seventy-six…

Reviews research concerning language acquisition in infants, particularly the acquisition of syntax. Topics of discussion include the problem of language acquisition, theories of language acquisition, and the progression from competing hypotheses to mutually reinforcing theories. (RJC)

Thirty children with a mean length of utterance ranging from 1.00 to 4 and an age range of 1.7 to 5.5 were tested for comprehension of two-noun possessive phrases. Three types of possessive relationships were used to uncover children's knowledge of the semantics and syntax of English possession. (Author/AM)

Three studies assessing language comprehension of infants and toddlers through a method requiring a minimum of motor movement, no speech production, and differential visual fixation of two simultaneously presented video events provide insight into children's emerging linguistic capabilities and help resolve controversies about language production…