This study is a validation of the LENA system for the Italian language. In Study 1, to test LENA's accuracy, seventy-two 10-minute samples extracted from daylong LENA recordings were manually transcribed for 12 children longitudinally observed at 1;0 and 2;0. We found strong correlations between LENA and human estimates in the number of Adult Word…

This study examines the comprehension of relative clauses by Chinese-speaking children, and evaluates the validity of the predictions of the Dependency Locality Theory (Gibson, 1998, 2000) and the Relativized Minimality approach (Friedmann, Belletti & Rizzi, 2009). One hundred and twenty children from three to eight years of age were tested by…

This study evaluates the effects of Age of Exposure to English (AoEE) and Current Input/Output on language performance in a cross-sectional sample of Spanish-English bilingual children. First- (N = 586) and third-graders (N = 298) who spanned a wide range of bilingual language experience participated. Parents and teachers provided information…

Irony comprehension in seven- and eight-year-old children with typically developing language skills was explored under the framework of the graded salience hypothesis. Target ironic remarks, either conventional or novel/situation-specific, were presented following brief story contexts. Children's responses to comprehension questions were used to…

Nineteen shy, twenty-three middle and twenty-five non-shy junior kindergarten children were assessed at school by an unfamiliar examiner, and at home where their parents administered a parallel form of the expressive and receptive vocabulary tests given at school. A speech sample between the child and parent was also collected at home. Shy…

Assessed long-term predictive validity of the MacArthur Communicative Development Inventories: Words and Sentences (CDI:WS) for children's expressive and receptive vocabulary development. Sixty-one New Zealand children were assessed with a New Zealand version of the CDI, and with the Expressive Vocabulary Test and Peabody Picture Vocabulary…

Discusses the establishment of a morpheme-per-utterance (MPU) index as opposed to the standard mean-length of utterance (MLU) for measuring the linguistic proficiency of two- to three-year-old Hebrew speakers. (EKN)

Acquisition of the words "this" and "that" was tested by a comprehension and a production task with children aged 4 and 7. It was confirmed that children would learn the spatial contrast between the words and apply it from the speakers viewpoint; non-egocentrism was not deemed necessary for correct use. (CHK)

Examined how Hebrew-speaking children acquired Hebrew-derived nominals (HDNs) of two types (action nominals and deverbal nouns). Child and adult native Hebrew speakers were tested on comprehension and production of HDNs. Acquisition of HDNs began at age 8 and was not complete by age 15. Task type, binyan patterns, and morphological regularity all…

A validation study of five checklists for assessing two-year-olds' word production revealed that the lists produced comparable mean production scores, reflected age differences, and preserved individual differences in total production and in production of linguistic categories such as nouns, verbs, open class items, and closed class items.…

Reports on a study designed to: (1) produce a multiple-choice test which would measure children's comprehension of figurative language, and (2) obtain information about the development of figurative language comprehension in children. (Author/AM)

Analysis of the free speech of one- to three-year-olds (N=21) found that measures of mean length of utterance (MLU) are positively related to age, are reliable, and can predict grammatical development, although there are identifiable points in the developmental evolution of MLU and MLU-like indices beyond which their reliability and validity have…

Focuses on the influence of language specific properties in the acquisition of locative expressions. Some of the claims from literature on the acquisition of locative expressions are discussed and data from the acquisition of Warlpiri are presented and discussed in terms of these claims. (Author/CB)

Analysis of data from studies investigating the effectiveness of a parent report form for assessing children's early language development showed that the vocabulary checklist had substantial validity, and that it helped parents to provide a valuable overall evaluation of their children's language at 20 months. (Author/CB)

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…