During the second year of life, children acquire words and expand their receptive and expressive vocabularies at a rapid pace. At this age, toddlers' phonological abilities are also developing rapidly. The current study investigated the effect of phonological complexity of words on the order in which they are acquired, receptively and…

Purpose: The current study used an intervention design to test the hypothesis that parent input sentences with diverse lexical noun phrase (NP) subjects would accelerate growth in children's sentence diversity. Method: Child growth in third person sentence diversity was modeled from 21-30 months (n = 38) in conversational language samples obtained…

According to the findings of several studies, parents' assessments of their toddler's language are valid and reliable evaluations of children's language competence, especially at early development stages. This study examined whether preschool teachers, who spend a relatively great deal of time with toddlers in various preschool activities and…

The relationship between grammatical and lexical development was compared in 233 English and 233 Italian children aged between 1;6 and 2;6, matched for age, gender, and vocabulary size on the MacArthur Communicative Development Inventories (CDI). Four different measures of Mean Length of Utterance were applied to the three longest utterances…

Significant relationships were found between linguistic maturity of children, speech of parents, and children's helping behavior. Mean length of utterance was a better predictor of cooperative behavior than child age; no comparable relationships were found for parents' nonverbal behaviors. Results support a hypothesis of verbal mediation of…