Investigating the Measurement Invariance and Method-Trait Effects of Parent and Teacher SNAP-IV Ratings of Preschool Children.

The Swanson, Nolan, and Pelham scale version IV (SNAP-IV) is widely used to assess symptoms of attention deficit hyperactivity disorder (ADHD) and oppositional defiant disorder (ODD) in children and adolescents. Nevertheless, there is insufficient data to support its use in preschool children. The study had three goals: First, to test the factorial validity of the three correlated-factors model of ADHD and ODD items of the SNAP-IV. Second, to investigate the measurement invariance of the items over time (6-month longitudinal interval) and by sex. Third, to investigate the convergent validity and method-specific influences on ADHD/ODD assessments with respect to multiple raters (parents/teachers) of children's symptoms. Participants were 618 preschool children (3.5-6 years) at baseline and 6-month follow-up. For model testing, we used confirmatory factor analysis for categorical observed variables. Method and trait effects were examined using the CT-C(M-1) model. The analyses showed partial measurement invariance over time and according to sex. Moreover, strong rater-specific effects were detected. The implication of the results for construct validation of the instrument and clinical assessment of ADHD and ODD traits are discussed.

Screening for the Identification of Oral Language Difficulties in Brazilian Preschoolers: A Validation Study.

Purpose This study aimed to develop and validate a screening questionnaire for the early identification of language difficulties in Brazilian Portuguese-speaking preschool children. Method The article is divided into two studies. In the first study, we reported the theoretical principles that guided the development of the Screening for Identification of Oral Language Difficulties by Preschool Teachers (SIOLD) and tested the validity of its structure. The psychometric properties of the SIOLD were tested using a sample of 754 children attending Year 1 of preschool. Thirty-two teachers coming from eight different schools completed individual questionnaires for all their students. Confirmatory factor analysis was used to assess the validity of the SIOLD. In the second study, we investigated the accuracy of the questionnaire for identifying children with oral language difficulties using a different sample of 100 preschool children. Using receiver operating characteristic and precision recall curves, we assessed the sensitivity and specificity of the SIOLD to identify children who showed impaired language performance in a short battery of tests. Results The SIOLD has been shown to be a valid and accurate questionnaire for assessing the form and content of oral language in preschool children. It showed good accuracy, with sensitivity ranging between .750 and .857 and specificity of .946 for the identification of language difficulties. Among the cases positively identified by the SIOLD as having language difficulties, 54.5% were true cases of language disorders, while 45.5% were false alarms. The combination of these findings shows that the SIOLD overpredicts positive cases but identifies most children with true language disorders and passes most children without language disorders, as required of a good screening test. Conclusions The questionnaire provides a useful tool for enabling Brazilian teachers to refer children with language difficulties to the speech-language services. The theoretical and clinical implications are discussed.

Tutoring effects in the narrative skills of typically developing children. / O efeito da tutela na narrativa de crianças em desenvolvimento típico.

PURPOSE: The objectives of this study were 1) To evaluate the tutoring effect on the type of the narrative produced by typically developing children, 2) To compare this effect between children from state and private schools and 3) to relate it with vocabulary, age and school performance. METHODS: The sample was composed by 107 children from state and private schools, aged from 4 to 9 years, within typical development. Children's narratives were prompted by sequences of pictures and scored according to the type of discourse: descriptive, causal or intentional. Children's narrative performance was compared before and after tutoring, between (state and private school) and within groups. The type of narrative was correlated with vocabulary, age and school performance. RESULTS: Before tutoring, most narratives were classified as descriptive. After tutoring, there was a predominance of intentional narratives. Children from state and private schools showed a similar response pattern with and without tutoring. After tutoring, the type of narrative showed significant correlation with vocabulary and academic performance. CONCLUSION: Tutoring improved the quality of children's narratives and this effect correlated with the vocabulary.

OBJETIVO: Os objetivos deste estudo foram: 1) avaliar o efeito da tutela no tipo de narrativa produzida por crianças em desenvolvimento típico, 2) compará-lo entre crianças de ensino público e privado, e 3) relacioná-lo com o vocabulário, faixa etária e desempenho escolar. MÉTODO: A amostra foi constituída por 107 crianças de escolas pública e particular, de 4 a 9 anos, em desenvolvimento típico. As narrativas das crianças foram eliciadas a partir de sequências de figuras, e pontuadas de acordo com o tipo de discurso: descritivo, causal ou intencional. O desempenho narrativo foi comparado antes e após a tutela, intra e entre grupos (escola pública e particular). O tipo de narrativa foi correlacionado ao vocabulário, idade e desempenho escolar. RESULTADOS: Antes da tutela, a maioria das narrativas das crianças foi classificada como descritiva. Após a tutela, houve predominância de narrativas do tipo intencional. As crianças de escola pública e particular apresentaram desempenho semelhante quando comparado o tipo de narrativa utilizada sem e com tutela. Após a tutela, o tipo de narrativa apresentou correlação significante com o vocabulário e com o desempenho escolar das crianças. CONCLUSÃO: A tutela é promotora da qualidade da narrativa produzida pelas crianças e este efeito apresentou correlação com o vocabulário.

Birth weight, verbal cognition in early adolescence, and lexical and reading skills in late adolescence: a formal mediation analysis using a potential outcomes approach.

BACKGROUND: Oral and written language in late adolescence are influenced by many pre- and postnatal factors, including cognitive performance at earlier ages. We investigated whether the association between birth weight and lexical knowledge and reading comprehension in late adolescence (14-16 years) is mediated by verbal cognition during early adolescence (10-11 years). METHODS: We conducted a mediation analysis via a potential outcomes approach to data from three United Kingdom (UK) prospective birth cohorts - The National Child Development Study (NCDS; year of birth (Y.B.) = 1,958; analytic sample size (A.N.) = 9,399; original sample size (O.N.) = 18,558), British Cohort Study (BCS70; Y.B. = 1,970; A.N. = 6,591; O.N. = 17,196), and Millennium Cohort Study (MCS; Y.B. = 2,000-2,001; A.N. = 3,950; O.N. = 18,552) - to evaluate the indirect effects of birth weight on lexical knowledge (BCS and MCS) and reading comprehension measures (NCDS) in adolescence. RESULTS: We found an indirect effect but no statistically significant direct effects for the BCS and MCS cohorts. The proportion of the effect of birth weight on oral and written language in late adolescence mediated by early adolescence verbal cognition was 59.19% (BCS) and 8.41% (MCS) for lexical knowledge and 61.00% when the outcome was reading comprehension (NCDS). Sensitivity analyses, used to assess whether unmeasured variables could have affected our mediation estimates, showed that for reading comprehension, in NCDS, the indirect effect is robust; only unmeasured confounders highly correlated with the mediator and outcome (ρ = .68) would explain away the indirect effect. For lexical knowledge, smaller correlations with hypothetical confounders (ρ = .33 for BCS) would suffice to render the indirect effect non-significant; the indirect effect for MCS non statistical significant. CONCLUSIONS: Birth weight affects oral and written language skills (lexical knowledge and reading comprehension) in late adolescence via verbal cognition in early adolescence in two cohorts born in 1958 and 1970, but not in a cohort born at the turn of the millennium. These indirect effects were stronger than the direct effects and are unlikely to be explained by unmeasured confounders when the outcome involves complex skills such as reading comprehension.

Psychometric Investigation of the Raven's Colored Progressive Matrices Test in a Sample of Preschool Children.

The present study investigated the psychometric properties of the Raven's Colored Progressive Matrices (CPM) test in a sample of preschoolers from Brazil (n = 582; age: mean = 57 months, SD = 7 months; 46% female). We investigated the plausibility of unidimensionality of the items (confirmatory factor analysis) and differential item functioning (DIF) for sex and age (multiple indicators multiple causes method). We tested four unidimensional models and the one with the best-fit index was a reduced form of the Raven's CPM. The DIF analysis was carried out with the reduced form of the test. A few items presented DIF (two for sex and one for age), confirming that the Raven's CPM items are mostly measurement invariant. There was no effect of sex on the general factor, but increasing age was associated with higher values of the g factor. Future research should indicate if the reduced form is suitable for evaluating the general ability of preschoolers.

O efeito da tutela na narrativa de crianças em desenvolvimento típico / Tutoring effects in the narrative skills of typically developing children

RESUMO Objetivo Os objetivos deste estudo foram: 1) avaliar o efeito da tutela no tipo de narrativa produzida por crianças em desenvolvimento típico, 2) compará-lo entre crianças de ensino público e privado, e 3) relacioná-lo com o vocabulário, faixa etária e desempenho escolar. Método A amostra foi constituída por 107 crianças de escolas pública e particular, de 4 a 9 anos, em desenvolvimento típico. As narrativas das crianças foram eliciadas a partir de sequências de figuras, e pontuadas de acordo com o tipo de discurso: descritivo, causal ou intencional. O desempenho narrativo foi comparado antes e após a tutela, intra e entre grupos (escola pública e particular). O tipo de narrativa foi correlacionado ao vocabulário, idade e desempenho escolar. Resultados Antes da tutela, a maioria das narrativas das crianças foi classificada como descritiva. Após a tutela, houve predominância de narrativas do tipo intencional. As crianças de escola pública e particular apresentaram desempenho semelhante quando comparado o tipo de narrativa utilizada sem e com tutela. Após a tutela, o tipo de narrativa apresentou correlação significante com o vocabulário e com o desempenho escolar das crianças. Conclusão A tutela é promotora da qualidade da narrativa produzida pelas crianças e este efeito apresentou correlação com o vocabulário.

ABSTRACT Purpose The objectives of this study were 1) To evaluate the tutoring effect on the type of the narrative produced by typically developing children, 2) To compare this effect between children from state and private schools and 3) to relate it with vocabulary, age and school performance. Methods The sample was composed by 107 children from state and private schools, aged from 4 to 9 years, within typical development. Children's narratives were prompted by sequences of pictures and scored according to the type of discourse: descriptive, causal or intentional. Children's narrative performance was compared before and after tutoring, between (state and private school) and within groups. The type of narrative was correlated with vocabulary, age and school performance. Results Before tutoring, most narratives were classified as descriptive. After tutoring, there was a predominance of intentional narratives. Children from state and private schools showed a similar response pattern with and without tutoring. After tutoring, the type of narrative showed significant correlation with vocabulary and academic performance. Conclusion Tutoring improved the quality of children's narratives and this effect correlated with the vocabulary.

The Home Literacy Environment Is a Correlate, but Perhaps Not a Cause, of Variations in Children's Language and Literacy Development.

The home literacy environment is a well-established predictor of children's language and literacy development. We investigated whether formal, informal, and indirect measures of the home literacy environment predict children's reading and language skills once maternal language abilities are taken into account. Data come from a longitudinal study of children at high risk of dyslexia (N = 251) followed from preschool years. Latent factors describing maternal language were significant predictors of storybook exposure but not of direct literacy instruction. Maternal language and phonological skills respectively predicted children's language and reading/spelling skills. However, after accounting for variations in maternal language, storybook exposure was not a significant predictor of children's outcomes. In contrast, direct literacy instruction remained a predictor of children's reading/spelling skills. We argue that the relationship between early informal home literacy activities and children's language and reading skills is largely accounted for by maternal skills and may reflect genetic influences.

Impact of specific language impairment and type of school on different language subsystems. / Impacto do distúrbio específico de linguagem e do tipo de escola nos diferentes subsistemas da linguagem.

PURPOSE: This study aimed to explore quantitative and qualitative effects of type of school and specific language impairment (SLI) on different language abilities. METHODS: 204 Brazilian children aged from 4 to 6 years old participated in the study. Children were selected to form three groups: 1) 63 typically developing children studying in private schools (TDPri); 2) 102 typically developing children studying in state schools (TDSta); and 39 children with SLI studying in state schools (SLISta). All individuals were assessed regarding expressive vocabulary, number morphology and morphosyntactic comprehension. RESULTS: All language subsystems were vulnerable to both environmental (type of school) and biological (SLI) effects. The relationship between the three language measures was exactly the same to all groups: vocabulary growth correlated with age and with the development of morphological abilities and morphosyntactic comprehension. Children with SLI showed atypical errors in the comprehension test at the age of 4, but presented a pattern of errors that gradually resembled typical development. CONCLUSION: The effect of type of school was marked by quantitative differences, while the effect of SLI was characterised by both quantitative and qualitative differences.

Impacto do distúrbio específico de linguagem e do tipo de escola nos diferentes subsistemas da linguagem / Impact of specific language impairment and type of school on different language subsystems

RESUMO Objetivo Este estudo teve o objetivo de explorar os efeitos do tipo de escola e do distúrbio específico de linguagem (DEL) sobre diferentes habilidades de linguagem, tanto do ponto de vista quantitativo quanto qualitativo. Método 204 crianças brasileiras de 4 a 6 anos participaram da pesquisa. As crianças foram recrutadas para formar três grupos: 1) 63 crianças em desenvolvimento típico de linguagem, estudantes de escola particular (DTPar); 2) 102 crianças em desenvolvimento típico de linguagem, estudantes de escola pública (DTPub); e 39 crianças com diagnóstico de DEL, estudantes de escola pública (DELPub). Todas as crianças foram avaliadas em provas de vocabulário expressivo, morfologia de número e compreensão morfossintática. Resultados Todos os subsistemas da linguagem foram susceptíveis tanto a questões ambientais (efeito tipo de escola) quanto orgânicas (efeito DEL). As relações entre as medidas de linguagem foram exatamente as mesmas para todos os grupos, indicando que o aumento do vocabulário ocorreu em função da idade, e se mostrou associado ao desenvolvimento das habilidades morfológicas e de compreensão morfossintática. As crianças com DEL apresentaram erros atípicos na prova de compreensão aos 4 anos, mas passaram a apresentar um padrão de erros semelhante ao do desenvolvimento típico com o aumento da idade. Conclusão O efeito tipo de escola foi marcado por diferenças quantitativas, enquanto o efeito DEL foi marcado por diferenças predominantemente quantitativas, mas também qualitativas.

ABSTRACT Purpose This study aimed to explore quantitative and qualitative effects of type of school and specific language impairment (SLI) on different language abilities. Methods 204 Brazilian children aged from 4 to 6 years old participated in the study. Children were selected to form three groups: 1) 63 typically developing children studying in private schools (TDPri); 2) 102 typically developing children studying in state schools (TDSta); and 39 children with SLI studying in state schools (SLISta). All individuals were assessed regarding expressive vocabulary, number morphology and morphosyntactic comprehension. Results All language subsystems were vulnerable to both environmental (type of school) and biological (SLI) effects. The relationship between the three language measures was exactly the same to all groups: vocabulary growth correlated with age and with the development of morphological abilities and morphosyntactic comprehension. Children with SLI showed atypical errors in the comprehension test at the age of 4, but presented a pattern of errors that gradually resembled typical development. Conclusion The effect of type of school was marked by quantitative differences, while the effect of SLI was characterised by both quantitative and qualitative differences.

Behavior problems and social competence in Brazilian children with specific language impairment

Abstract This study aimed to investigate the behavior and social profile of Brazilian children with specific language impairment (SLI) and explore whether the severity of language deficits was associated with behavioral problems and low social competence. Twenty-four children with SLI aged from 6 to 11 years who showed substantial expressive language problems and were receiving speech-language therapy were assessed through the Child Behavior Checklist (CBCL). Children with SLI showed high rates of behavioral problems and low levels of social competence. With the exception of two subscales ("somatic" and "rule breaker"), the percentage of children with SLI at risk of behavioral problems was significantly higher than the same proportion in the general population; and almost all children with SLI (95.2 %) demonstrated problems with social competence. The severity of language deficits was associated with the risk of behavioral problems according to only one criterion. No associations were found between the severity of language problems and social competence. The study provides cross-cultural evidence to support the existence of behavior problems and reduced social competence in children with SLI. Our findings point to the need of using a combination of measures to classify the severity of language problems rather than a single dimension. (AU)

Specific language impairment in language-minority children from low-income families.

BACKGROUND: Recent evidence suggests that specific language impairment (SLI) might be secondary to general cognitive processing limitations in the domain of executive functioning. Previous research has focused almost exclusively on monolingual children with SLI and offers little evidence-based guidance on executive functioning in bilingual children with SLI. Studying bilinguals with SLI is important, especially in the light of increasing evidence that bilingualism can bring advantages in certain domains of executive functioning. AIMS: To determine whether executive functioning represents an area of difficulty for bilingual language-minority children with SLI and, if so, which specific executive processes are affected. METHODS & PROCEDURES: This cross-cultural research was conducted with bilingual children from Luxembourg and monolingual children from Portugal who all had Portuguese as their first language. The data from 81 eight-year-olds from the following three groups were analysed: (1) 15 Portuguese-Luxembourgish bilinguals from Luxembourg with an SLI diagnosis; (2) 33 typically developing Portuguese-Luxembourgish bilinguals from Luxembourg; and (3) 33 typically developing Portuguese-speaking monolinguals from Portugal. Groups were matched on first language, ethnicity, chronological age and socioeconomic status, and they did not differ in nonverbal intelligence. Children completed a battery of tests tapping: expressive and receptive vocabulary, syntactic comprehension, verbal and visuospatial working memory, selective attention and interference suppression. OUTCOMES & RESULTS: The bilingual SLI group performed equally well compared with their typically developing peers on measures of visuospatial working memory, but had lower scores than both control groups on tasks of verbal working memory. On measures of selective attention and interference suppression, typically developing children who were bilingual outperformed their monolingual counterparts. For selective attention, performance of the bilingual SLI group did not differ significantly from the controls. For interference suppression the bilingual SLI group performed significantly less well than typically developing bilinguals but not monolinguals. CONCLUSIONS & IMPLICATIONS: This research provides further support to the position that SLI is not a language-specific disorder. The study indicates that although bilingual children with SLI do not demonstrate the same advantages in selective attention and interference suppression as typically developing bilinguals, they do not lag behind typically developing monolinguals in these domains of executive functioning. This finding raises the possibility that bilingualism might represent a protective factor against some of the cognitive limitations that are associated with SLI in monolinguals.

Executive functioning and reading achievement in school: a study of Brazilian children assessed by their teachers as "poor readers".

This study examined executive functioning and reading achievement in 106 6- to 8-year-old Brazilian children from a range of social backgrounds of whom approximately half lived below the poverty line. A particular focus was to explore the executive function profile of children whose classroom reading performance was judged below standard by their teachers and who were matched to controls on chronological age, sex, school type (private or public), domicile (Salvador/BA or São Paulo/SP) and socioeconomic status. Children completed a battery of 12 executive function tasks that were conceptual tapping cognitive flexibility, working memory, inhibition and selective attention. Each executive function domain was assessed by several tasks. Principal component analysis extracted four factors that were labeled "Working Memory/Cognitive Flexibility," "Interference Suppression," "Selective Attention," and "Response Inhibition." Individual differences in executive functioning components made differential contributions to early reading achievement. The Working Memory/Cognitive Flexibility factor emerged as the best predictor of reading. Group comparisons on computed factor scores showed that struggling readers displayed limitations in Working Memory/Cognitive Flexibility, but not in other executive function components, compared to more skilled readers. These results validate the account that working memory capacity provides a crucial building block for the development of early literacy skills and extends it to a population of early readers of Portuguese from Brazil. The study suggests that deficits in working memory/cognitive flexibility might represent one contributing factor to reading difficulties in early readers. This might have important implications for how educators might intervene with children at risk of academic under achievement.

Effects of impoverished environmental conditions on working memory performance.

This cross-cultural study investigates the impact of background experience on four verbal and visuo-spatial working memory (WM) tasks. A total of 84 children from low-income families were recruited from the following groups: (1) Portuguese immigrant children from Luxembourg impoverished in terms of language experience; (2) Brazilian children deprived in terms of scholastic background; (3) Portuguese children from Portugal with no disadvantage in either scholastic or language background. Children were matched on age, gender, fluid intelligence, and socioeconomic status and completed four simple and complex span tasks of WM and a vocabulary measure. Results indicate that, despite large differences in their backgrounds and language abilities, the groups exhibited comparable performance on the visuo-spatial tasks dot matrix and odd-one-out and on the verbal simple span task digit recall. Group differences emerged on the verbal complex span task counting recall with children from Luxembourg and Portugal outperforming children from disadvantaged schools in Brazil. The study suggests that whereas contributions of prior knowledge to digit span, dot matrix, and odd-one-out are likely to be minimal, background experience can affect performance on counting recall. Implications for testing WM capacity in children growing up in poverty are discussed.

Cross-linguistic and cross-cultural effects on verbal working memory and vocabulary: testing language-minority children with an immigrant background.

PURPOSE: In this study, the authors explored the impact of test language and cultural status on vocabulary and working memory performance in multilingual language-minority children. METHOD: Twenty 7-year-old Portuguese-speaking immigrant children living in Luxembourg completed several assessments of first (L1)- and second-language (L2) vocabulary (comprehension and production), executive-loaded working memory (counting recall and backward digit recall), and verbal short-term memory (digit recall and nonword repetition). Cross-linguistic task performance was compared within individuals. The language-minority children were also compared with multilingual language-majority children from Luxembourg and Portuguese-speaking monolinguals from Brazil without an immigrant background matched on age, sex, socioeconomic status, and nonverbal reasoning. RESULTS: Results showed that (a) verbal working memory measures involving numerical memoranda were relatively independent of test language and cultural status; (b) language status had an impact on the repetition of high- but not on low-wordlike L2 nonwords; (c) large cross-linguistic and cross-cultural effects emerged for productive vocabulary; (d) cross-cultural effects were less pronounced for vocabulary comprehension with no differences between groups if only L1 words relevant to the home context were considered. CONCLUSION: The study indicates that linguistic and cognitive assessments for language-minority children require careful choice among measures to ensure valid results. Implications for testing culturally and linguistically diverse children are discussed.

Is it possible to predict the length of therapy for developmental language impairments?

PURPOSE: To explore which measures could predict the persistency of developmental language impairment (DLI) based on the association between the initial language assessment and the therapeutic prognosis of the child. METHODS: In this retrospective study, the records of 42 children with diagnosis of DLI were analyzed. Participants' age varied from 21 to 63 months at the first language assessment, which included vocabulary, phonology, pragmatics and fluency tests. The performance of subjects in each test was scored from 0 to 4, based on the severity of the deficits, and the maximum score corresponded to age-adequate performance. As prognostic measure, we accounted the length of therapy (in sessions) of patients who were discharged, were referred to another service (because the deficits had become very mild), or remained in therapy (persistent language difficulties). RESULTS: There was association between initial assessment (normal or mild alterations for vocabulary and pragmatics abilities) and prognosis (<135 therapeutic sessions). Vocabulary was the only variable able to predict the length of therapy. Being classified as severe in this measure caused the estimate of treatment to increase, in average, 112 sessions. CONCLUSION: The first vocabulary assessment can contribute to predict the child's therapeutic prognosis. This finding is clinically and scientifically relevant to Speech-Language Pathology, since it offers an auxiliary resource to the prognosis and therapeutic planning in cases of DLI.

É possível predizer o tempo de terapia das alterações específicas no desenvolvimento da linguagem? / Is it possible to predict the length of therapy for developmental language impairments?

OBJETIVO: Explorar quais medidas poderiam predizer a persistência de alterações específicas no desenvolvimento da linguagem (AEDL) a partir da associação entre os dados do desempenho na primeira avaliação fonoaudiológica e do prognóstico terapêutico da criança. MÉTODOS: Neste estudo retrospectivo, foram analisados 42 prontuários pertencentes a crianças com diagnóstico de AEDL. As idades variavam entre 21 e 63 meses no momento da primeira avaliação fonoaudiológica, que incluiu as provas de vocabulário, fonologia, pragmática e fluência. O desempenho dos sujeitos em cada prova foi pontuado de 0 a 4, com base na gravidade das alterações, sendo a pontuação máxima a adequada para a idade. Como medida prognóstica, contabilizamos o tempo de terapia (em sessões) dos pacientes que receberam alta, foram encaminhados (o quadro havia se tornado muito leve), ou permaneceram em terapia (dificuldades persistentes de linguagem). RESULTADOS: Houve associação entre os dados da avaliação inicial (classificação normal ou levemente alterada no vocabulário e pragmática) e o prognóstico (<135 sessões terapêuticas). A variável referente ao vocabulário foi a única capaz de predizer o tempo de terapia. A classificação como grave nesta medida aumentou, em média, 112 sessões na estimativa do tratamento. CONCLUSÃO: A primeira avaliação do vocabulário pode contribuir para predizer o prognóstico terapêutico da criança. Este achado é de relevância clínica e científica para a Fonoaudiologia, visto que oferece um recurso auxiliar para a realização do prognóstico e planejamento terapêutico nos quadros de AEDL.

PURPOSE: To explore which measures could predict the persistency of developmental language impairment (DLI) based on the association between the initial language assessment and the therapeutic prognosis of the child. METHODS: In this retrospective study, the records of 42 children with diagnosis of DLI were analyzed. Participants' age varied from 21 to 63 months at the first language assessment, which included vocabulary, phonology, pragmatics and fluency tests. The performance of subjects in each test was scored from 0 to 4, based on the severity of the deficits, and the maximum score corresponded to age-adequate performance. As prognostic measure, we accounted the length of therapy (in sessions) of patients who were discharged, were referred to another service (because the deficits had become very mild), or remained in therapy (persistent language difficulties). RESULTS: There was association between initial assessment (normal or mild alterations for vocabulary and pragmatics abilities) and prognosis (<135 therapeutic sessions). Vocabulary was the only variable able to predict the length of therapy. Being classified as severe in this measure caused the estimate of treatment to increase, in average, 112 sessions. CONCLUSION: The first vocabulary assessment can contribute to predict the child's therapeutic prognosis. This finding is clinically and scientifically relevant to Speech-Language Pathology, since it offers an auxiliary resource to the prognosis and therapeutic planning in cases of DLI.

Redação científica e a qualidade dos artigos: em busca de maior impacto / Scientific writing and the quality of papers: towards a higher impact

Tendo em vista a constante preocupação de cientistas e editores com a qualidade da escrita científica, o objetivo deste artigo foi apresentar alguns tópicos acerca da estrutura recomendada para a publicação em periódicos revisados por pares. Detalhamos os pontos-chave das seções tradicionais de artigos originais e propusemos dois materiais que podem ser úteis à redação científica: um roteiro pontual para elaborar as principais ideias do artigo; e um quadro com exemplos de estruturas indesejáveis e desejáveis na redação científica.

Given the latent concern of scientists and editors on the quality of scientific writing, the aim of this paper was to present topics on the recommended structure of peer-reviewed papers. We described the key points of common sections of original papers and proposed two additional materials that may be useful for scientific writing: one particular guide to help the organization of the main ideas of the paper; and a table with examples of non desirable and desirable structures in scientific writing.

Scientific writing and the quality of papers: towards a higher impact.

Given the latent concern of scientists and editors on the quality of scientific writing, the aim of this paper was to present topics on the recommended structure of peer-reviewed papers. We described the key points of common sections of original papers and proposed two additional materials that may be useful for scientific writing: one particular guide to help the organization of the main ideas of the paper; and a table with examples of non desirable and desirable structures in scientific writing.

Compreensão de sentenças em crianças com desenvolvimento normal de linguagem e com distúrbio específico de linguagem / Sentence comprehension in children with normal language development and with specific language impairment

Tarefas de compreensão de sentenças exigem grandes demandas de processamento linguístico e consistem em uma ferramenta útil para investigar diferenças entre o desempenho de crianças de diferentes grupos. O objetivo desta tese foi verificar a existência dos efeitos crosslinguísticos, sócio-econômicos e do Distúrbio Específico de Linguagem (DEL) nas habilidades de compreensão de sentenças de crianças pequenas. Método: Participaram deste estudo 269 crianças de 4 a 6 anos, divididas em quatro grupos: 1) Brasileiras de escola pública; 2) Brasileiras de escola privada; 3) Inglesas de escola pública; e 4) Brasileiras com DEL, de escola pública. As sentenças utilizadas neste estudo exigiam a compreensão de duas variáveis lingüísticas: a ordem das palavras e o morfema gramatical de número. Resultados: O efeito sócio-econômico foi caracterizado por uma dificuldade específica em processar a informação morfológica de número. Houve um pequeno efeito crosslinguístico, especialmente relacionado à compreensão da ordem das palavras. A principal diferença entre os grupos foi encontrada para as crianças com DEL: enquanto as mais novas apresentaram padrões atípicos de resposta, as mais velhas tiveram um desempenho semelhante ao das crianças mais novas, em desenvolvimento normal de linguagem, pertencentes a baixos níveis sócio-econômicos. Conclusões: Os achados indicaram que o desempenho de crianças de 4 a 6 anos nesta prova de compreensão foi diferente de acordo com o grupo estudado, evidenciando efeitos sócio-econômicos, crosslinguísticos (embora em menor extensão) e do DEL. Esta prova foi particularmente útil para discriminar as crianças com DEL das demais, contribuindo para o diagnóstico da patologia.

Sentence comprehension tasks require high linguistic processing demands and constitute an useful tool for investigating differences between various groups of children. The aim of this thesis was to verify the existence of crosslinguistic, socio-economic and Specific Language Impairments (SLI) effects on young childrens sentence comprehension abilities. Methods: Participated on this study 269 children aged 4 to 6 years-old, divided into four groups: 1) Brazilian children from state schools; 2) Brazilian children from private schools; 3) English children from state schools; and 4) Brazilian SLI children from state schools. The sentences used in this study required the comprehension of two linguistic variables: word order and the number grammatical morpheme. Results: The socioeconomic effect consisted on a significant difficulty in processing number morphological information. There was a small crosslinguistic effect, particularly related to word order comprehension. The main difference between groups was found for SLI children: while the youngest group showed atypical patterns of response, the oldest one performed similarly to younger children within normal language development, from low socioeconomic status. Conclusions: The findings indicated that 4- to 6-yearold childrens performance on this sentence comprehension test varied regarding group, demonstrating socio-economic, crosslinguistic (although in less extent) and SLIs effects. This test was particularly useful to discriminate between SLI and normally developing children, contributing to differential diagnosis.