scholarly journals Differences in Early Vocabulary Development from 18-36-month-old Late Talkers and Typically Developing Toddlers of Matched Age and Expressive Vocabulary Levels

2021 ◽  
Vol 26 (2) ◽  
pp. 274-283
Author(s):  
Dongsun Yim ◽  
Yoonhee Yang ◽  
Jeongwon Choi ◽  
Jia Han ◽  
Miseon Chae
Keyword(s):  
Vocabulary Development ◽  
Typically Developing ◽  
Expressive Vocabulary ◽  
Late Talkers

scholarly journals Vocabulary development in Greek children: a cross-linguistic comparison using the Language Development Survey*

2011 ◽  
Vol 38 (4) ◽  
pp. 861-887 ◽  
Author(s):  
CHRISTINA F. PAPAELIOU ◽  
LESLIE A. RESCORLA
Keyword(s):  
Language Development ◽  
Word Learning ◽  
Vocabulary Development ◽  
Typically Developing ◽  
Normative Sample ◽  
Vocabulary Size ◽  
Word Use ◽  
Closed Class ◽  
Late Talkers ◽  
Us Children

ABSTRACTThis study investigated vocabulary size and vocabulary composition in Greek children aged 1 ; 6 to 2 ; 11 using a Greek adaptation of Rescorla's Language Development Survey (LDS; Rescorla, 1989). Participants were 273 toddlers coming from monolingual Greek-speaking families. Greek LDS data were compared with US LDS data obtained from the instrument's normative sample (Achenbach & Rescorla, 2000). Vocabulary size increased markedly with age, but Greek toddlers appeared to get off to a slower start in early word learning than US children. The correlation between percentage word use scores in Greek and US samples was moderate in size, indicating considerable overlap but some differences. Common nouns were the largest category among the fifty most frequent words in both samples. Numbers of adjectives and verbs were comparable across languages, but people and closed-class words were more numerous in the Greek sample. Finally, Greek late talkers showed similar patterns of vocabulary composition to those observed in typically developing Greek children.

scholarly journals Differences and Similarities in Predictors of Expressive Vocabulary Development between Children with Down Syndrome and Young Typically Developing Children

2021 ◽  
Vol 11 (3) ◽  
pp. 312
Author(s):  
Kari-Anne B. Næss ◽  
Johanne Ostad ◽  
Egil Nygaard
Keyword(s):  
Down Syndrome ◽  
Motor Skills ◽  
Vocabulary Development ◽  
Receptive Vocabulary ◽  
Auditory Memory ◽  
Typically Developing ◽  
Expressive Vocabulary ◽  
Typically Developing Children ◽  
Children With Down Syndrome ◽  
Oral Motor

The purpose of this study was to examine potential differences in the predictors of expressive vocabulary development between children with Down syndrome and typically developing children to support preparation for intervention development. An age cohort of 43 children with Down syndrome and 57 typically developing children with similar nonverbal mental age levels were assessed at three time points. Linear mixed models were used to investigate the predictors of expressive vocabulary over time. Both groups achieved progress in expressive vocabulary. The typically developing children had steeper growth than the children with Down syndrome (1.38 SD vs. 0.8 SD, p < 0.001). In both groups, receptive vocabulary, auditory memory, and the home literacy environment were significant predictors of development. In the children with Down syndrome, the phonological awareness and oral motor skills were also significant. Group comparisons showed that receptive vocabulary, auditory memory and oral motor skills were stronger predictors in the children with Down syndrome than in the typically developing children. These results indicate that children with Down syndrome are more vulnerable when it comes to risk factors that are known to influence expressive vocabulary than typically developing children. Children with Down syndrome therefore require early broad-based expressive vocabulary interventions.

scholarly journals The syntactic and semantic features of two-year-olds’ verb vocabularies: a comparison of typically developing children and late talkers

2019 ◽  
Vol 46 (3) ◽  
pp. 409-432 ◽  
Author(s):  
Sabrina HORVATH ◽  
Leslie RESCORLA ◽  
Sudha ARUNACHALAM
Keyword(s):  
Language Development ◽  
Retrospective Analysis ◽  
Language Disorders ◽  
Mixed Effects ◽  
Group Classification ◽  
Semantic Features ◽  
Typically Developing ◽  
Expressive Vocabulary ◽  
Typically Developing Children ◽  
Late Talkers

AbstractChildren with language disorders have particular difficulty with verbs, but when this difficulty emerges is unknown. We examined syntactic (transitive, intransitive, ditransitive) and semantic (manner, result) features of two-year-olds’ verb vocabularies, contrasting late talkers and typically developing children to look for early differences in verb vocabulary. We conducted a retrospective analysis of parent-reported expressive vocabulary from the Language Development Survey (N = 564, N(LT) = 62) (Rescorla, 1989). Verbs were coded for the presence or absence of each syntactic and semantic feature. Binomial mixed-effects regressions revealed the effect of feature on children's knowledge and whether feature interacted with group classification. Our results revealed mostly similarities between late talkers and typically developing children. All children's vocabularies showed a bias against verbs that occur in ditransitive frames. One feature showed a difference between groups: late talkers showed a bias against manner verbs that typically developing children did not.

Is There a Cognate Effect in Bilingual Children With Developmental Language Disorder?

2021 ◽  
pp. 1-9
Author(s):  
Bita Payesteh ◽  
Giang T. Pham
Keyword(s):  
Performance Test ◽  
English Proficiency ◽  
Language Disorder ◽  
Vocabulary Development ◽  
Difficulty Level ◽  
Bilingual Children ◽  
Typically Developing ◽  
Developmental Language Disorder ◽  
Expressive Vocabulary ◽  
Test Items

Purpose: Cognates, words in two languages that share form and meaning, can be used to support vocabulary development in bilingual children. Typically developing bilinguals have shown better performance on cognates versus noncognates. Of key interest is whether bilinguals with developmental language disorder (DLD) also show a cognate effect and, if so, which factors are related to their cognate performance. Method: Thirty-five Spanish–English bilingual children (5–11 years old) with DLD completed the Expressive and Receptive One-Word Picture Vocabulary Tests, third edition, in English (EOW, ROW) to measure cognate performance. Test items were divided by difficulty level (easy, medium, and hard) and classified as cognates or noncognates using the Cross-Linguistic Overlap Scale for Phonology. Results: On average, children showed clear and robust cognate effects on EOW across difficulty levels with medium-to-large effect sizes. Results on the ROW showed minimal effects that varied by difficulty. Individually, 80% of participants (28 of 35) demonstrated a cognate effect in EOW, whereas only 31% (11 of 35) showed an effect in ROW. A cognate effect in ROW was positively correlated with age and English proficiency, whereas no factors correlated with the EOW cognate effect. Conclusions: Bilingual children with DLD show higher performance on cognates than noncognates, at least in expressive vocabulary. Participants who did show a receptive cognate effect tended to be older and have higher English proficiency. Further investigation is needed to identify factors underlying cognate performance in order to tailor intervention strategies that promote bilingual vocabulary development.

scholarly journals Αποκλίσεις στην ανάπτυξη του λεξιλογίου σε παιδιά βρεφικής και πρώιμης προσχολικής ηλικίας

2020 ◽  
Vol 20 (3) ◽  
pp. 247
Author(s):  
Σοφία Παρίζη ◽  
Αρετή Οκαλίδου ◽  
Αργυρώ Χαχούδη ◽  
Κάκια Πετεινού
Keyword(s):  
Parental Education ◽  
Demographic Characteristics ◽  
Receptive Vocabulary ◽  
Typically Developing ◽  
Expressive Vocabulary ◽  
Lexical Development ◽  
Parental Education Level ◽  
Parent Questionnaire ◽  
Late Talkers ◽  
The Mean

The present research is a first investigation of the development of receptive and expressive vocabulary in Greek-speaking children, aged 0;6-3;6 years, who were characterized as late-talkers (LT) due to a significant deviation of their vocabulary scores from the mean score of their typically-developing peers (TD). The present work is part of a larger project concerning the greek adaptation of a parent questionnaire named Cypriot–Greek Lexical Acquisition Checklist (CYLEX) (Petinou, Hadzigeorgiou & Minaidou, 1999). Within-group comparisons between receptive and expressive vocabulary are drawn for both LT and TD children. In addition, the influence of demographic factors on vocabulary scores, such as gender and parental education level, was examined. The comparison across type of vocabulary revealed that receptive vocabulary develops prior to expressive in both groups, however, late-talkers have a disproportionately low expressive lexical development as compared to receptive. Moreover, the differences in vocabulary scores among LT and TD children are discussed as a function of demographic characteristics.

scholarly journals Infant-directed speech from seven to nineteen months has similar acoustic properties but different functions

2018 ◽  
Vol 45 (5) ◽  
pp. 1035-1053 ◽  
Author(s):  
Marina KALASHNIKOVA ◽  
Denis BURNHAM
Keyword(s):  
Longitudinal Study ◽  
Vocabulary Development ◽  
Speech Quality ◽  
Acoustic Properties ◽  
Expressive Vocabulary ◽  
Vocabulary Size ◽  
Communicative Development ◽  
Three Components

AbstractThis longitudinal study assessed three acoustic components of maternal infant-directed speech (IDS) – pitch, affect, and vowel hyperarticulation – in relation to infants’ age and their expressive vocabulary size. These three individual components were measured in IDS addressed to infants at 7, 9, 11, 15, and 19 months (N = 18). All three components were exaggerated at all ages in mothers’ IDS compared to their adult-directed speech. Importantly, the only significant predictor of infants’ expressive vocabulary size at 15 and 19 months was vowel hyperarticulation, but only at 9 months and beyond, not at 7 months, and not pitch or affect at any age. These results set apart vowel hyperarticulation in IDS to infants as the critical IDS component for vocabulary development. Thus IDS, specifically the degree of vowel hyperarticulation therein, is a vehicle by which parents can provide the most optimal speech quality for their infants’ linguistic and communicative development.

A longitudinal study of vocabulary size and composition in low risk preterm children

2017 ◽  
Vol 38 (1) ◽  
pp. 72-94 ◽  
Author(s):  
Miguel Pérez-Pereira ◽  
Raquel Cruz
Keyword(s):  
Longitudinal Study ◽  
Cognitive Development ◽  
Growth Curve ◽  
Maternal Education ◽  
Vocabulary Development ◽  
Low Risk ◽  
Regression Analyses ◽  
Expressive Vocabulary ◽  
Vocabulary Size ◽  
Preterm Children

The vocabulary size and composition of one group of full-term and three groups of low risk preterm children with different gestational ages (GA) were longitudinally compared at 10, 22 and 30 months of age. Expressive vocabulary development was assessed through the CDI. Cognitive development was also assessed at 22 months (Batelle Developmental Inventory), and data concerning biological and environmental characteristics of the children were also obtained. Growth curve analyses indicated that there were no significant differences in vocabulary size or percentage of word categories among GA groups. Regression analyses showed that word production and cognitive scores measured at 22 months were the main predictors of total vocabulary and word categories at 30 months. Gender, maternal education and GA did not contribute in a significant way to the variance of use of the vocabulary categories or vocabulary size. Therefore, GA does not seem to affect vocabulary development and composition when biomedical complications associated to prematurity are excluded.

Effects of grammatical category and morphology on fast mapping in typically developing and late talking toddlers

2019 ◽  
Vol 39 (3) ◽  
pp. 249-280 ◽  
Author(s):  
Irene Rujas ◽  
Marta Casla ◽  
Sonia Mariscal ◽  
Miguel Lázaro López-Villaseñor ◽  
Eva Murillo Sanz
Keyword(s):  
Extension Phase ◽  
Lexical Acquisition ◽  
Control Group ◽  
Typically Developing ◽  
Fast Mapping ◽  
Grammatical Category ◽  
Vocabulary Size ◽  
Spanish Speaking ◽  
Late Talkers ◽  
Mapping Task

The purpose of this study was to examine early fast mapping abilities in late talkers (LT) and typically developing (TD) Spanish-speaking children by considering the effect of different variables on fast mapping (age, vocabulary level, grammatical category and number morphology). Thirty-eight Spanish-speaking children were assessed at three times (21 to 24 months at the beginning of the study). A group of LT was matched in age with a TD control group. They completed a fast mapping task with a disambiguation phase and an extension phase. Results show that vocabulary level and age interact with grammatical category and number morphology. TD children’s performance was significantly higher than LT children’s, but these differences decreased with age. Results suggest that the incorporation of new labels does not work automatically; some children may need repeated exposures to word–referent pairings. Longitudinal results suggest the importance of looking at the dynamics of lexical acquisition in addition to vocabulary size.

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