MacArthur Communicative Development Inventory Research Articles

Approach to Complementary Feeding and Infant Language Use: An Observational Study.

Emerging research suggests that a more infant-led approach to complementary feeding may confer benefits for child language, but these findings are based on parent report studies. Using an observational approach this study examines whether different complementary feeding experiences relate to infant language exposure and language use. Fifty-eight parents recorded a typical infant mealtime in the home (mean infant age = 14 months, SD = 4.15). Observations were coded to measure the prevalence of infant-led and parent-led feeding using the Family Mealtime Coding Scheme. Caregiver language use (word types and token directed at the child, mean length of utterances in child-directed speech, responsiveness and initiations) and the number of infant vocalisations were coded in ELAN using CHAT conventions and parents completed the MacArthur Communicative Development Inventory short form as a measure of child language. Greater observed infant self-feeding was significantly associated with greater observed exposure to language from caregivers (r = 0.312 percentage of infant self-feeding correlated with caregiver word types directed at the child) and a greater number of infant vocalisations (r = 0.320 percentage of infant self-feeding correlated with number of child vocalisations produced). Structural Equation Modelling showed the relationship between infant self-feeding and infant vocalisations to be significantly mediated by enhanced quality and quantity of caregiver child-directed speech (model fit: χ2 [5] = 5.01, p = 0.415, CFI = 1.00 [NF = 0.98], RMSEA = 0.006). Differences in the approach to complementary feeding may shape infant's experiences in ways that support language exposure and use. Autonomy associated with infant self-feeding may enhance opportunities for social interaction.

Variables asociadas a las características de comunicación y lenguaje de las personas con síndrome de Angelman en una muestra de la península Ibérica

IntroductionAngelman syndrome (AS) is a rare condition with low prevalence associated with severe global developmental delay, behavioral phenotype of happy appearance and social interaction, moderate to severe intellectual disability with minimal or absent oral language associated with molecular etiology and featuring clinical variables. ObjectivesTo describe communication and language abilities in a sample of individuals with AS from Spain and Portugal, explore the influence of molecular etiology, age and use of Augmentative and Alternative Communication (AAC). Materials and methodsThe sample comprised 40 individuals diagnosed with AS, from the Iberian Peninsula, assessed using the MacArthur Communicative Development Inventories. ResultsA characteristic profile is shown with a predominance of gestures and receptive language over expressive. Differences are noted by molecular subtype, age, use of AAC and the origin in the Iberian Peninsula. ConclusionsThe linguistic phenotype for Angelman Syndrome is consistent with findings from other studies, however associated variables such as molecular etiology and use of AAC should be considered.

Repertório lexical de crianças de 24 e 30 meses falantes do português brasileiro: resultados preliminares

ABSTRACT Purpose To check the lexical repertoire of Brazilian Portuguese-speaking children at 24 and 30 months of age and the association between the number of words spoken and the following variables: socioeconomic status, parents’ education, presence of siblings in the family, whether or not they attend school, and excessive use of tablets and cell phones. Methods 30 parents of children aged 24 months living in the state of São Paulo participated in the study. Using videoconferencing platforms, they underwent a speech-language pathology anamnesis, an interview with social services, and then they completed the “MacArthur Communicative Development Inventory - First Words and Gestures” as soon as their children were 24 and 30 months old. Quantitative and qualitative inferential inductive statistics were applied. Results the median number of words produced was 283 at 24 months and 401 at 30 months, indicating an increase of around 118 words after six months. The child attending a school environment had a significant relationship with increased vocabulary. Conclusion The study reinforces the fact that vocabulary grows with age and corroborates the fact that children aged 24 months already have a repertoire greater than 50 words. Those who attend school every day produce at least 70 more words than those who do not.

Lexical repertoire of 24 and 30-month-old children speaking Brazilian portuguese: preliminary results.

To check the lexical repertoire of Brazilian Portuguese-speaking children at 24 and 30 months of age and the association between the number of words spoken and the following variables: socioeconomic status, parents' education, presence of siblings in the family, whether or not they attend school, and excessive use of tablets and cell phones. 30 parents of children aged 24 months living in the state of São Paulo participated in the study. Using videoconferencing platforms, they underwent a speech-language pathology anamnesis, an interview with social services, and then they completed the "MacArthur Communicative Development Inventory - First Words and Gestures" as soon as their children were 24 and 30 months old. Quantitative and qualitative inferential inductive statistics were applied. the median number of words produced was 283 at 24 months and 401 at 30 months, indicating an increase of around 118 words after six months. The child attending a school environment had a significant relationship with increased vocabulary. The study reinforces the fact that vocabulary grows with age and corroborates the fact that children aged 24 months already have a repertoire greater than 50 words. Those who attend school every day produce at least 70 more words than those who do not.

Antidepressants use during pregnancy and child psychomotor, cognitive and language development at 2years of age-Results from the 3D Cohort Study.

Introduction: Approximately 5.5% of pregnant women take antidepressants. Studies on prenatal exposure to antidepressants reported no association with child cognition, and inconsistent results with motor function and language development. A limitation has been the failure to adjust for prenatal maternal distress. Objectives: Assess the associations between prenatal exposure to antidepressants and child development at age two, while adjusting for maternal depressive symptoms and stress during pregnancy. Explore indirect effects through birth complications and consider sex-specific associations. Methods: This is an ancillary study of the 3D (Design Develop, Discover) Study initiated during pregnancy. Data on antidepressants were collected through medication logs spanning the entire pregnancy. Depressive symptoms and stress were assessed during pregnancy by self-reported questionnaires, motor and cognitive development with the Bayley Scales of Infant and Toddler Development (BSID-III), and language development with the MacArthur Communicative Development Inventories at age 2. Multiple linear regressions were used to assess the associations between exposure and developmental outcomes. Mediation models were used to assess indirect effects. Interaction terms were introduced to assess sex-specific associations. Results: 1,489 mother-child dyads were included, of whom 61 (4.1%) reported prenatal antidepressant use. Prenatal exposure was negatively associated with motor development (B = -0.91, 95% CI -1.73, -0.09 for fine motor, B = -0.89, 95% CI -1.81, 0.02 for gross motor), but not with cognitive (B = -0.53, 95% CI -1.82, 0.72) and language (B = 4.13, 95% CI -3.72, 11.89) development. Adjusting for maternal prenatal distress only slightly modified these associations. No indirect effect or differential effect according to child sex were found. Conclusion: This study supports evidence of a negative association between prenatal exposure to antidepressants and motor development at age two, after adjusting for maternal distress, but the effect size remains very small, with about only one BSID-III point lower in average.

Early Literacy Promotion Using Automated Hovering Among Young Minority Children

ObjectiveTo determine feasibility, acceptability, and explore outcomes of behavioral economic (BE) strategies to increase parent-child shared reading within a Reach Out and Read program. MethodsWe conducted rapid-cycle interviews with 10 parents to assess text messages followed by an 8-week randomized controlled trial of 3 BE strategies at 2 urban primary care practices: daily text messages (texting); daily text messages and regret messaging (regret); or daily text messages, regret messaging, and lottery participation (lottery). Parent-child dyads were eligible if children were <24 months old, Medicaid-eligible, and had access to phones capable of receiving and sending text messages. Parents completed the Read Subscale of the StimQ and Parenting Stress Index-short form (PSI-SF) pre- and postintervention, MacArthur Communicative Development Inventory (CDI), Devereux Early Childhood Assessment (DECA), and a satisfaction measure postintervention. Differences between groups were assessed using intention-to-treat analysis. ResultsOf 45 dyads randomized, 41 (91%) completed the study. Most participants were Black with incomes <$55,000. Parents reported reading on average 4 d/wk with no change in the reading frequency over time. StimQ scores increased over time, but there were no significant differences in StimQ, PSI-SF, CDI, and DECA scores between groups. Parents in all 3 groups reported satisfaction (3.8/5.0) with the intervention. ConclusionsImplementation of BE strategies in 2 Reach Out and Read programs was feasible, near acceptable, and improved home reading environment scores. Future study should investigate BE strategies vis-à-vis usual care and be of sufficient duration and intensity to engage participants to assess its impact on patient and parent outcomes.

Word usage as measured by parental checklists and language samples: trends, comparisons, and implications.

Although parental checklists are well-known for their potential in indexing young children's lexicon size, they can also be used to track children's acquisition of individual words. Word-level data can be used to identify the checklist words most and least commonly employed across groups of children. Like parent-completed vocabulary checklists, samples of spontaneous language use collected from multiple children can also generate measures of word commonality, concerned with the numbers of children producing individual words. To our knowledge, comparisons of word usage as determined by parental checklist and language sample data obtained in parallel from the same children have not been carried out. Also scarce in the empirical literature are item-level analyses of early bilingual lexicons that explore word usage across two emerging languages. The present study aimed to contribute toward bridging both gaps through the analysis of data generated by a bilingual Maltese-English adaptation of the vocabulary checklist of the MacArthur Communicative Development Inventories: Words and Sentences (CDI: WS) and spontaneous language samples for the same children. An additional objective was to derive implications for revising the current version of the vocabulary checklist, in preparation for its eventual standardization. For 44 Maltese children aged 12, 18, 24, and 30 months, the words reported by their main caregivers on the vocabulary checklist were identified, along with their respective semantic categories. For the same children, 20-min language samples obtained during free play with the caregiver were transcribed orthographically. Words identified through parental report and language sampling were analyzed for commonality, i.e., the number of children producing each word. Comparison of the word usage patterns obtained through both methods indicated differences in the words most commonly sampled and those most commonly reported, particularly in relation to grammatical categories. Notwithstanding these differences, positive and significant correlations emerged when considering all grammatical categories and languages across commonality levels. The commonality scores based on parental checklist data have implications for reconsidering the length and language balance of the Maltese-English adaptation of the CDI: WS vocabulary checklist. Sampled word usage patterns can contribute additional objectivity in updating the reporting instrument in preparation for its eventual standardization.

Usvajanje jezika kod djece uzrasta dvije i tri godine / Language Acquisition in Children Aged Two and Three

This paper discusses language acquisition in children aged two and three. The analysis was carried out on a corpus of child language compiled during research conducted at a kindergarten in Sarajevo among children aged two and three who acquire their native language in the area of Sarajevo, Bosnia and Herzegovina. Qualitative and quantitative methods were applied in the corpus analysis. The development of child language production was measured by the Mean Length of Utterance, based on the number of words per utterance (MLUw). The distribution of parts of speech was established for both age groups. A special emphasis was placed on the ratio between the number of nouns and the number of verbs. The results have confirmed the nativist natural partitions hypothesis, according to which nouns are predominant in children’s early speech over verbs and other parts of speech. MacArthur Communicative Development Inventory (MCDI) was applied in the semantic analysis of nouns. The analysis confirmed the hypothesis that nouns denoting animate beings have a higher prevalence over nouns denoting inanimate objects at the early stages of language acquisition. In addition, the presence of complex and abstract concepts was detected, which supports the theory of the existence of an innate language acquisition device in humans. The creative aspect of child language was also analysed, along with differences between the language of children and the language of adult speakers.

Eye tracking based assessment of lexical processing and early lexical development in very preterm children

BackgroundAssociations between lexical processing and lexical development during the second year of life have been little studied in preterm children. AimsTo evaluate associations between lexical processing at 18 months and lexical development between 12 and 18 months in very preterm children. Study designCorrelational study. Subjects25 Finnish-speaking children born <32 gestational weeks. Outcome measuresLexical processing (reaction time RT; correct looking time CLT) was measured with an eye tracking technology-based task at 18 months' corrected age. Lexical development was measured longitudinally at 12-, 15- and 18-months' corrected age using the following screening instruments: the short form version of the MacArthur Communicative Development Inventories and the Communication and Symbolic Behavior Scale: Infant-Toddler Checklist. ResultsThe longer the RT of the child, the weaker expressive skills the child had at 12 and 15 months (correlations coefficient values −0.45 to −0.51). The more the child looked at the target image compared to the distractor (CLT), the stronger expressive skills the child had at 18 months (r = 0.45–0.52). A linear regression model with RT and gender as independent variables explained 33 % of the variance in lexical skills at 18 months. A model with CLT explained 40 % of expressive skills at 18 months. ConclusionsLexical processing at 18 months was associated with expressive lexical development in very preterm children. The results suggest eye tracking technology based methods may have utility in the assessment of early lexical growth in preterm children, although further research is needed to assess psychometric properties and predictive value of the method.

Early Productive Vocabulary Composition as Precursor of Dyslexia.

The aim of this study was to gain more insight into the linguistic characterization of dyslexia by investigating vocabulary acquisition. In a previous study, vocabulary at 17 months of age appeared to be related to familial risk (FR) of dyslexia. The aim of this study was to investigate how the differences in lexical composition further develop up to 3 years (35 months) of age and, more importantly, to what extent these differences can be considered specific precursors of dyslexia later on. In a total number of 262 children from the Dutch Dyslexia Program, 169 with and 93 without FR for dyslexia, productive vocabulary was assessed with the Dutch version of the MacArthur Communicative Development Inventories at ages 17, 23, 29, and 35 months. Reading tests were administered in Grades 2 and 3, resulting in dyslexia diagnosis in 60 FR children (FR-dys), leaving 109 FR children who developed normal reading skills (FR-nondys) and 93 control children. Children's expressive vocabulary was scored according to the total number of words produced and according to the different major linguistic word categories: nouns, predicates, and closed-class words. The analyses comprised a comparison of total productive vocabulary and the number of words per grammatical category at four different ages for the three groups (FR-dys, FR-nondys, and control). Also, correlations were calculated between vocabulary scores and reading scores. Up to 29 months of age, the total numbers of nouns, predicates, and closed-class words are significantly lower for the FR-dys group as compared with the FR-nondys and control groups; for closed-class words at 23 and 35 months of age, the FR-nondys group's mean values are in between the mean of the FR-dys and control groups. Weak correlations were found between total vocabulary size, number of verbs, number and proportion of predicates at 23 months of age, and word and pseudoword reading fluency in Grades 2 and 3. These results indicate that development of vocabulary is a significant though weak predictor of reading fluency and dyslexia; vocabulary size and proportion of verbs at 23 months of age, as well as proportion of closed-class words up to 35 months of age, seem to be the most sensitive indicators of delayed vocabulary development and later reading difficulties. There is no indication that FR for dyslexia by itself is related to vocabulary development.

Language Screening in 3-Year-Olds: Development and Validation of a Feasible and Effective Instrument for Pediatric Primary Care.

Objective: The study was aimed at evaluating the validity and feasibility of SPES-3 (Sprachentwicklungsscreening), a language screening in 3-year-old children within the constraints of regular preventive medical check-ups.Methods: A four-component screening measure including parental reports on the child's expressive vocabulary and grammar based on the MacArthur Communicative Development Inventory and pediatrician-administered standardized assessments of noun plurals and sentence comprehension was used in a sample of 2,044 consecutively seen children in 30 pediatric offices. One-hundred forty-four children (70 who failed and 74 who passed the screener) comprised the validation sample and also underwent follow-up gold standard assessment. To avoid verification and spectrum bias multiple imputation of missing diagnosis for children who did not undergo gold standard assessment was used. Independent diagnoses by two experts blinded to the screening results were considered gold standard for diagnosing language disorder. Screening accuracy of each of the four subscales was analyzed using receiver operator characteristic (ROC) curves. Feasibility was assessed by use of a questionnaire completed by the pediatricians.Results: The two parental screening subscales demonstrated excellent accuracy with area under the curve (AUC) scores of 0.910 and 0.908 whereas AUC scores were significantly lower for the subscales directly administered by the pediatricians (0.816 and 0.705). A composite score based on both parental screening scales (AUC = 0.946) outperformed single subscales. A cut off of 41.69 on a T-scale resulted in about 20% positive screens and showed good sensitivity (0.878) and specificity (0.876). Practicability, acceptability and sustainability of the screening measure were mostly rated as high.Conclusion: The parent-reported subscales of the SPES-3 language screener are a promising screening tool for use in primary pediatric care settings.

Vocabulary Growth in Lexical Categories Between Ages 13 and 24 Months as a Function of the Child’s Sex, Child, and Family Factors

We examined the vocabulary growth of lexical categories in 719 children (age 13–24 months) as part of a longitudinal cohort study (the STEPS Study) and found a discrepancy in how these categories were affected depending on the child’s sex. In girls, attending day care at 24 months of age predicted a positive vocabulary growth in the lexical categories sound effects, nouns, people, and games and routines, compared to girls staying at home. Firstborn girls had a greater vocabulary growth in descriptive and function words, in contrast to those born later. A boy attending day care at age 24 months was likely to have greater growth in sound effects and animal sounds, compared to boys not in day care. A family history of late onset of speech predicted less vocabulary growth in all lexical categories in boys, except for sound effects and animal sounds. Early vocabulary is of importance for later language and literacy development. Vocabulary is not an impenetrable entirety but consists of various types of words (lexical categories) developing at different tempos as they contribute to the developing language. Factors influencing early vocabulary development in boys and girls have been painstakingly studied, but fewer have examined these factors across lexical categories, let alone whether they have an equal effect in both sexes. More knowledge of what affects the variation in early vocabulary in boys and girls is needed for clinical practice and preventive purposes. Vocabulary was measured with the Finnish version of the MacArthur Communicative Development Inventory. The effect of child and family factors on vocabulary growth in various lexical categories was analyzed separately for boys and girls using structural equational modelling. The results of the present study indicate that vocabulary development in the lexical categories is affected differently by child and parental factors in girls and boys as early as the second year of life, which gives new insights into the factors that need consideration in clinical practice and preventive work.

Communication skills predict social-emotional competencies

IntroductionStudies have shown that many children with early language difficulties also have delays in social-emotional competencies as well as social-emotional and behavioral problems. It is unclear if these conditions are causally related, if they share a common underlying etiology, or if there are bidirectional effects. Studies investigating these associations have mostly involved children who are already using words to communicate, but it is important to know whether delays in preverbal communication and language development have any effects on these associations. The aim of the present study was to examine associations between preverbal communication and early verbal skills in infancy and subsequent social-emotional competencies and ensuing social-emotional and behavioral problems in early toddlerhood. The role of background factors known to influence early language development was also examined. MethodsThe sample consisted of 395 children (51.6% boys) from the Finnish Steps Study cohort. Language was assessed at age 13 months (+ 1 month) with the MacArthur Communicative Development Inventory for Infants (CDI-I), and the social-emotional domain was assessed at age < 17 months with the Brief Infant–Toddler Social and Emotional Assessment (BITSEA). ResultsInfants with lower preverbal gestural communication and receptive language skills had a higher risk of delays in social-emotional competencies in toddlerhood than children with better communication skills, but not of elevated social-emotional and behavioral problems. ConclusionsThe results indicate that lower early communication skills can predict delays in the development of social-emotional competencies, which has been found to be a risk factor for later development of social-emotional and behavioral problems. It is important to monitor early communication skills to provide guidance to parents in supporting early pragmatic communication and language development in infancy, if needed.

Language development in children of clinically depressed mothers in remission: Early experience effects.

We compared language comprehension and production across the second year of life in children of clinically depressed mothers who later remitted with children of nondepressed mothers. Altogether, 157 mother-child dyads participated: 46 with mothers diagnosed at infant age 5 months as having major, minor, or other depressive disorders who fully remitted by 15 and 24 months and 111 with nondepressed mothers. The majority of mothers (mean [M] age = 32.8 years) were married, European American, and college educated. The groups did not differ on most sociodemographic indices, and analyses controlled for residual group differences in maternal education and child birth order. Children of early clinically depressed mothers understood fewer words at 15 months (by maternal report on the MacArthur Communicative Development Inventory [MCDI]) and 24 months (by experimenter-administered Reynell Developmental Language Scales [RDLS]) than children of nondepressed mothers. Children of nondepressed mothers increased in language comprehension from 15 to 24 months, whereas children of early clinically depressed mothers did not. Aggregating over 15 and 24 months, nondepressed mothers reported that their children expressed more words than clinically depressed mothers reported their children expressed; experimenter assessment revealed no difference between the two groups. Maternal clinical depression in the first 5 months is related to reduced language comprehension and production during the second year of life even in children whose mothers remit, indicating an early experience effect of maternal clinical depression in muting child language development. Future research should identify the mechanisms by which this early experience effect occurs to inform targeted early preventative interventions for at-risk children. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Longitudinal assessment of social attention in preterm and term infants: Its relation to social communication and language outcome.

Preterm birth has been reported to be associated with an increased risk of social communication and language problems. Recently, we found that preterm infants showed atypical patterns of social attention compared with term infants. However, it is still unknown how social attention develops and whether the individual differences are associated with developmental outcomes for social communication and language in preterm infants. The social attention of preterm and term infants at 6, 12, and 18months was investigated using two types of social attention tasks (human-geometric preference task and gaze-following task). The Modified Checklist for Autism in Toddlers (M-CHAT) and the MacArthur Communicative Development Inventory adapted for Japanese were measured at 18months. We found that compared with term infants, preterm infants spent less time looking toward dynamic human images and followed another's gaze directions less frequently through 6, 12, and 18months. Moreover, hierarchical multiple regression analysis revealed that less preference for dynamic human images and gaze-following abilities was associated with high M-CHAT and low language scores in preterm and term infants, respectively. These findings suggest that birth status affects development of social attention through 18months and individual differences in social attention reflect differences in social communication and language outcomes.

Growing Up in a Digital World - Digital Media and the Association With the Child's Language Development at Two Years of Age.

Digital media (DM), such as cellphones and tablets, are a common part of our daily lives and their usage has changed the communication structure within families. Thus, there is a risk that the use of DM might result in fewer opportunities for interactions between children and their parents leading to fewer language learning moments for young children. The current study examined the associations between children’s language development and early DM exposure.Participants: Ninety-two parents of 25months olds (50 boys/42 girls) recorded their home sound environment during a typical day [Language ENvironment Analysis (LENA)] and participated in an online questionnaire consisting of questions pertaining to daily DM use and media mediation strategies, as well as a Swedish online version of the MacArthur Communicative Development Inventory, which includes a vocabulary scale as well as a grammar and pragmatics scale.Results: Through correlations and stepwise regressions three aspects of language were analyzed. The child’s vocabulary was positively associated with interactional turn-taking. The child’s vocabulary and grammar were negatively associated with the likelihood of parent’s device use during everyday child routines and the amount of TV watched by the child. The child’s pragmatic development was also positively associated with the parent’s device use in child routines but also with the parent’s joint media engagement (JME), as well as the child’s gender (where girls perform better).Conclusion: Our study confirms that specific aspects of the 2-year old’s DM environment are associated with the child’s language development. More TV content, whether it is viewed on a big screen or tablet, is negatively associated with language development. The likelihood of parents’ use of DM during everyday child routines is also negatively associated with the child’s language development. Positive linguistic parental strategies such as interactional turn-taking with the child, JME, and book reading, on the other hand, are positively associated with the child’s language development.

Concurrent validity of the MacArthur communicative development inventory, the Ages and Stages Questionnaires and the Bayley Scales of Infant and Toddler Development: A study in rural China

AbstractWe aimed to evaluate the validity of the Ages and Stages Questionnaires Edition 3 (ASQ‐3) and the MacArthur communicative development inventory (CDI) as a screening measure for children at risk of language development delay in western rural China, by comparing them to the Bayley Scales of Infant and Toddler Development (BSID‐III). We administered the BSID‐III on 1,079 children (aged 8–24 months) and administered the ASQ‐3 and the CDI to their caregivers. We found a significant, low‐to‐moderate correlation between the three scales. Further, correlation strength increased with age of the child and was stronger when the mother was the primary caregiver. We also found that the sensitivity and specificity of the ASQ‐3 ranged widely. The overall findings suggest that the ASQ‐3 and the CDI may not be very accurate screening tools for identifying language development delays in children, especially those under 17 months or whose primary caregiver is not their mother.Highlights We evaluated the accuracy of language sections of three scales (CDI, ASQ‐3 and BSID‐III) for rural children in western China. Multiple methods were utilized and showed a significant, low‐to‐moderate correlation between the three scales. Our findings revealed that both ASQ‐3 and CDI are not accurate screening tools for identifying language development delays in children.

МАКАРТУРОВСКИЙ ОПРОСНИК КАК ИНСТРУМЕНТ ДИАГНОСТИКИ ЛЕКСИКОНА ДЕТЕЙ-БИЛИНГВОВ

The article analyzes the MacArthur Communicative Development Inventory (CDI) as a means of research and diagnostics of children's speech in different languages. It takes into account the data from Stanford University websites, which deal with findings resulted from the analysis of completed questionnaires. The sites provide abundant information concerning adaptations of this tool for more than 100 languages and a database of children's passive and active lexicons for 29 languages (including Russian). Moreover, on the basis of 23 languages, they show unique and universal character of word usage in the speech of young learners studying several different languages simultaneously. This article also provides research findings on the bilingual children’s early vocabulary (with Russian as the Heritage language) under the RFBR grant No. 19-012-00293.

Maternal interactive beliefs and style as predictors of language development in preterm and full term children.

Previous research has shown that the quality of mother-child interactions between pre-term children and their mothers tends to be poorer than that of full-term children and their mothers (Forcada-Guex, Pierrehumbert, Borghini, Moessinger & Muller-Nix, 2006). Mothers of pre-term children are less responsive and more intrusive in interactions with their children than mothers of full-term children (Forcada-Guex et al., 2006; Ionio, Lista, Mascheroni, Olivari, Confalonieri, Mastrangelo, Brazzoduro, Balestriero, Banfi, Bonanomi, Bova, Castoldi, Colombo, Introvini & Scelsa, 2017; Laing, McMahon, Ungerer, Taylor, Badawi & Spence, 2010). The current research explored differences between mothers of pre-term and full-term children in terms of interactive beliefs and style, and the potential for language development to be differentially predicted by maternal interactive beliefs and styles in pre-term versus full-term children. Independent t-tests were conducted to compare pre-term and full-term groups in relation to the measures of maternal interactive beliefs and styles. A series of multiple regression analyses were then performed separately for each group to examine the shared and unique contributions of maternal interactive beliefs and styles on full-term versus pre-term children's language development. The results showed that mothers of pre-term children were more intrusive-directive than mothers of full-term children; in contrast, mothers of full-term children were more responsive and supportive-directive in interactions with their children. Moreover, predictors of language development were different in full-term versus pre-term children; in full-term children, maternal supportive beliefs and responsiveness were significant predictors of language development evaluated by both the Bayley Scales of Infant and Toddler Development and the MacArthur Communicative Development Inventory; in the pre-term group, maternal supportive and directive beliefs, as well as supportive and intrusive directiveness, were significant predictors, with the latter being negatively associated with language development indicators. This research can shed light on how to prevent language delay in children and improve mother-child interactions that contribute to language development, which may in turn improve language development in vulnerable children, children born pre-term in particular.

Lexical Selectivity of 2-Year-Old Children With and Without Repaired Cleft Palate Based on Parent Report.

To determine vocabulary and lexical selectivity characteristics of children with and without repaired cleft palate at 24 months of age, based on parent report. Forty-nine children with repaired cleft palate, with or without cleft lip (CP±L; 25 males; 21 cleft lip and palate, 28 CP only), 29 children with a history of otitis media (OM) and ventilation tubes (21 males), and 25 typically developing (TD) children (13 males). Parent-reported expressive vocabulary was determined using the MacArthur Communicative Development Inventory: Words and Sentences. Vocabulary size was reduced for children with repaired CP±L compared to children in the TD group (P = .025) but not the OM group (P = .403). Mean percentage of words beginning with sonorants did not differ across groups (P = .383). Vocabulary size predicted sonorant use for all groups (P = .001). Children with repaired CP±L exhibit similar lexical selectivity relative to word initial sounds compared to noncleft TD and OM peers at 24 months of age, based on parent report.