Development of the Digital Speech Assessment Instrument.

OBJECTIVE: This study aimed to develop a Digital Speech Assessment Instrument to evaluate the phonological and motor speech skills of Brazilian Portuguese-speaking children and adolescents through six tasks: (a) word naming, (b) word imitation, (c) pseudoword imitation, (d) word repetition, (e) pseudoword repetition, and (f) diadochokinesis. METHOD: The assessment instrument was developed and validated in a seven-step process, beginning with stimulus selection and ending with Pilot Study 1 (involving children and adolescents with typical speech development) and Pilot Study 2 (involving children and adolescents with speech sound disorders [SSDs]). Participants of the study included expert and nonexpert judges, children, and adolescents. RESULTS: The Digital Speech Assessment Instrument contains 91 real words (61 in the naming task, 51 in the imitation task, and five in the repetition task), 26 pseudowords (26 in the imitation task and four in the repetition task), and six stimuli for diadochokinesis. The test contains stimuli in the form of images as well as audio and video recordings and allows for the analysis and storage of participant data in a virtual database. CONCLUSIONS: This study described the development of the Digital Speech Assessment Instrument, available in Brazilian Portuguese for the evaluation of several aspects of speech production (including word and pseudoword naming, imitation, and repetition and diadochokinesis). The test was developed for children aged 2;0 (years;months) to 17;11 and is administered fully online. In the future, the instrument can be used to provide a timely and accurate diagnosis of SSDs.

Phonological Assessment Instrument: evidence of reliability. / Instrumento de Avaliação Fonológica: evidências de fidedignidade.

PURPOSE: To present evidence of intra- and inter-rater reliability and internal consistency of the Phonological Assessment Instrument scores, so that it can be considered reliable and valid for use in clinical practice. METHODS: 179 audio recordings of the instrument's speech samples were analyzed. The collection was carried out from its application in the period of 5 months in children aged from five to eight years and 11 months. Three expert judges transcribed the speech production of each child into the software, which generated performance reports. The speech data of each child were compared between these evaluators, who were trained and experienced in phonetic transcription, to verify the agreement of the instrument scores. For the reliability analysis, the internal consistency was verified using Cronbach's Alpha and the intra and inter-rater reliability using the Intraclass Correlation Coefficient. RESULTS: The Phonological Assessment Instrument showed evidence of high internal consistency, with scores indicating excellent reliability for the assessment of Brazilian Portuguese phonemes, as well as adequate agreement among the judges regarding the instrument scores. CONCLUSION: The instrument presented robust evidence of reliability, being a reliable and safe option to be used in Brazilian research and clinical practice to evaluate the phonological system of Brazilian children.

OBJETIVO: Apresentar evidências de fidedignidade intra e interavaliadores, e de consistência interna, dos escores do Instrumento de Avaliação Fonológica, a fim de que possa ser considerado fidedigno e válido para a utilização na prática clínica. MÉTODO: Foram analisados 179 áudios dos registros de fala do instrumento, cuja coleta foi realizada a partir da sua aplicação no período de 5 meses em crianças na faixa etária dos cinco aos oito anos e 11 meses. Três juízes especialistas transcreveram no software a produção de fala de cada criança, o qual gerou relatórios de desempenho. Os dados de fala de cada criança foram comparados entre esses avaliadores, treinados e experientes em transcrição fonética, para verificar a concordância dos escores do instrumento. Para a análise da fidedignidade, foi verificada a consistência interna pelo Alpha de Cronbach e a confiabilidade intra e interavaliadores por meio do Coeficiente de Correlação Intraclasse. RESULTADOS: O Instrumento de Avaliação Fonológica apresentou evidências de alta consistência interna, com escores indicando excelente fidedignidade para avaliação dos fonemas do Português Brasileiro, como também uma adequada concordância entre os juízes acerca dos escores do instrumento. CONCLUSÃO: O instrumento apresentou evidências robustas de fidedignidade, sendo uma opção confiável e segura para ser utilizado em pesquisas brasileiras e na prática clínica para avaliar o sistema fonológico de crianças.

Decision Tree Versus Linear Support Vector Machine Classifier in the Screening of Medial Speech Sounds: A Quest for a Sound Rationale.

This paper describes the latest development in the classification stage of our Speech Sound Disorder (SSD) Screening algorithm and presents the results achieved by using two classifier models: the Classification and Regression Tree (CART)-based model versus the Single Decision Hyperplane-based Linear Support Vector Machine (SVM) model. For every single speech sound in medial position, 10 features extracted from the audio samples along with an 11th feature representing the validation of the (mis)pronunciation by the Speech Language Pathologist (SLP) were fed into the 2 classifiers to compare and discuss their performance. The accuracy achieved by the two classifiers on a data test size of 30% of the analyzed samples was 98.2% for the Linear SVM classifier, and 100% for the Decision Tree classifier, which are optimal results that encourage our quest for a sound rationale.

Dynamic assessment of the effectiveness of digital game-based literacy training in beginning readers: a cluster randomised controlled trial.

In this article, we report on a study evaluating the effectiveness of a digital game-based learning (DGBL) tool for beginning readers of Dutch, employing active (math game) and passive (no game) control conditions. This classroom-level randomized controlled trial included 247 first graders from 16 classrooms in the Netherlands and the Dutch-speaking part of Belgium. The intervention consisted of 10 to 15 min of daily playing during school time for a period of up to 7 weeks. Our outcome measures included reading fluency, phonological skills, as well as purpose built in-game proficiency levels to measure written lexical decision and letter speech sound association. After an average of 28 playing sessions, the literacy game improved letter knowledge at a scale generalizable for all children in the classroom compared to the two control conditions. In addition to a small classroom wide benefit in terms of reading fluency, we furthermore discovered that children who scored high on phonological awareness prior to training were more fluent readers after extensive exposure to the reading game. This study is among the first to exploit game generated data for the evaluation of DGBL for literacy interventions.

Supporting Culturally Responsive Assessment Practices With Preschoolers: Guidance From Methods in the Jamaican Context.

PURPOSE: There is a shortage of available methods to accurately inform the developmental status of children whose cultural and linguistic backgrounds vary from the mainstream. The purpose of this review article was to describe different approaches used to support the accurate characterization of speech, language, and functional communication in children speaking Jamaican Creole and English, an understudied paradigm in the speech pathology research. METHOD: Approaches used across four previously published studies in the Jamaican Creole Language Project are described. Participants included 3- to 6-year-old Jamaican children (n = 98-262) and adults (n = 15-33). Studies I and II described validation efforts about children's functional communication using the Intelligibility in Context Scale (ICS; speech) and the Focus on the Outcomes of Communication Under Six (FOCUS; speech and language). Study III described efforts to accurately characterize difference and disorder in children's expressive grammar using adapted scoring, along with adult models to contextualize child responses. Last, Study IV applied acoustic duration (e.g., whole word) and an adapted scoring protocol to inform variation in speech sound productions in the Jamaican context where a post-Creole continuum exists. RESULTS: Studies I and II offered promising psychometric evidence about the utility of the ICS and the FOCUS. Study III revealed strong sensitivity and specificity in classifying difference and disorder using adult models. Last, in Study IV, linguistically informed acoustic analyses and an adapted protocol captured variation in speech productions better than a standard approach. CONCLUSIONS: Applying culturally responsive methods can enhance the accurate characterization of speech, language, and functional communication in Jamaican children. The innovative methods used offer a model approach that could be applied to other linguistic contexts where a mismatch exists between speech-language pathologists and their clientele. PRESENTATION VIDEO: https://doi.org/10.23641/asha.23929461.

Effects of socio-economic status on infant native and non-native phoneme discrimination.

Infants undergo fundamental shifts in perception that are reported to be critical for language acquisition. In particular, infants' perception of native and non-native sounds begins to align with the properties of their native sound system. Thus far, empirical evidence for this transition - perceptual narrowing - has drawn from socio-economically and linguistically narrow populations from limited world regions. In this study, infants were sampled across diverse socio-economic strata and linguistic development in Singapore. One hundred and 16 infants were tested on their ability to discriminate both a native phonetic contrast (/ba/ versus /da/) and a non-native Hindi contrast (/ta/ versus /ʈa). Infants ranged in age from 6 to 12 months. Associations between age and discrimination varied by contrast type. Results demonstrated that infants' native sensitivities were positively predicted by family SES, whereas non-native sensitivities were not. Maternal socio-economic factors uniquely predicted native language sensitivity. Findings suggest that infants' sensitivity to native sound contrasts is influenced by their family socio-economic status. RESEARCH HIGHLIGHTS: We investigated effects of socio-economic status on infant speech perception. Infants were tested on native and non-native speech discrimination. Socio-economic status predicted native speech discrimination. Maternal occupation was a key predictor of native speech discrimination.

Graphemes are used when reading: Evidence from Monte Carlo simulation using word norms from mega-studies.

Recently, Chetail (Journal of Memory and Language, 2020) has claimed there is no strong evidence that multi-letter graphemes are used in reading tasks with proficient adult readers, with most studies being statistically weak or having confounds in the stimuli used. Here, I used Monte Carlo simulation with data from reading mega-studies to examine the extent to which the number of multi-letter graphemes matters in words when letter length is held constant. This was done by simulating thousands of experiments using different sets of items for each of a small number of comparisons (e.g., words with only single-letter graphemes versus words with one multi-letter grapheme). The results showed that words with two multi-letter graphemes tended to cause slower reaction times than words with one or no multi-letter graphemes, with effects found in both naming and lexical decision tasks. Interestingly, when words with no multi-letter graphemes were compared with words with one multi-letter grapheme, the differences were much weaker. Simulations of naming results using two computer models, the connectionist dual-process (CDP) model and the dual-route cascaded (DRC) model, showed only CDP predicted this pattern. Since CDP learns simple associations between graphemes and phonemes whereas DRC uses a set of grapheme-phoneme rules, this suggests that the results may have been caused by simple associations between spelling and sound being relatively easy to learn with words with one compared with two multi-letter graphemes. More generally, the results suggest that graphemes are used when reading, but they often produce relatively weak effects and thus differences in some studies may not have been found due to a lack of power.

Production and Perception Evidence of a Merger: [l] and [n] in Fuzhou Min.

The current study investigated the merger-in-progress between word-initial nasal and lateral consonants in Fuzhou Min, examining the linguistic and social factors that modulate the merger. First, the acoustic cues to the l-n distinction were examined in Fuzhou Min. Acoustic analyses suggested a collapse of phonemic contrast between prescriptive L and N (phonemes in the unmerged system), with none of the six acoustic cues showing any difference across L and N. Linear discriminant analysis did identify acoustically distinct [l] and [n] tokens, although the mapping onto the phonetic space of prescriptive L and N substantially overlapped. Speakers of all ages and both genders tended to produce [l], and low vowels correlated with more [n]-like classification. In perception, AX discrimination data showed Fuzhou Min listeners confused both prescriptive L and N and acoustic [l] and [n]. Greater sensitivity to the acoustic differences occurred in the context of low vowels and a nasal coda, supported by the acoustics of the stimuli, and younger listeners were more sensitive to the difference between [l] and [n] than older listeners. In two-alternative forced choice (2AFC) identification, Fuzhou Min listeners also identified the merged form as L more frequently than N, with more L responses elicited in the context of low vowels and in the absence of nasal codas. Overall, although Fuzhou Min speakers produced some acoustically distinct [l] and [n] tokens in the context of a sound merger, these productions did not map onto prescriptive L and N. In addition, younger listeners were more sensitive to the acoustic distinction than older listeners, suggesting an emerging acoustic contrast possibly arising due to contact with Mandarin.

Does Dynamic Assessment Offer An Alternative Approach to Identifying Reading Disorder? A Systematic Review.

Traditional static tests of reading and reading-related skills offer some ability to predict future reading performance, though such screeners may misclassify children with or at risk of reading disorder (RD). Dynamic assessment (DA) is an alternative approach that measures learning potential and may be less dependent on learning background. A systematic review was carried out to examine the ability of DA to classify children with or at risk of RD. A database search yielded 14 eligible articles assessing DA of decoding, phonological awareness (PA), and working memory (WM). Results suggest that DA explains unique variance in the prediction of later RD status, and although models with a single dynamic predictor sometimes achieved good classification accuracy, this was enhanced somewhat by the addition of static predictors. Higher classification accuracy was found for DA targeting constructs more proximal to reading, particularly decoding, but the predictive power of DA of decoding and PA appeared to wane with increasing age as static measures explained more variance in outcomes. Some evidence emerged that DA provides benefits over static tests for the prediction of RD in bilingual students, though no studies examined outcomes by administration format or orthographic depth. Limitations and suggestions for future work are discussed.

Working memory span and receptive vocabulary assessment in Urdu speaking children with speech sound disorder.

Emerging evidence suggests that impaired speech may be related to reduced working memory (WM). The current study aimed to validate and compare the influence of articulation, short-term memory (STM), WM, and receptive vocabulary abilities of Pakistani children with speech sound disorder (SSD; N = 50) versus typically developing (TD; N = 30) children aged 7-13 years. Assessments included the Test for Assessment of Articulation and Phonology in Urdu (TAAPU), Peabody Picture Vocabulary Test-4, translated to Urdu (U-PPVT-4), and Digit Memory Test (DMT) used to determine speech articulation, receptive vocabulary, and memory abilities respectively. The percentage correct consonants (PCC) score was used to divide the SSD group further into SSD severity groups. The TD and SSD groups significantly differed in performance on all tasks (p < 0.05). Moreover, the SSD severity groups showed significant differences (p < 0.0001) in performance on different components of TAAPU (total errors and substitution errors) and DMT tasks. However, the SSD severity groups did not show significant differences in performance on the U-PPVT-4. Correlational analyses indicate statistically significant correlations of PCC with STM, WM, and receptive vocabulary. Regression analyses suggested that both WM and STM contribute to speech intelligibility in children with SSD. Our findings in Urdu-speaking children support previous results in English-speaking children suggesting the articulation skills, receptive vocabulary, STM, and WM were less developed in children with SSD than in TD children.

O papel da consciência fonológica para a leitura, escrita e matemática em estudos brasileiros e principais instrumentos de avaliação: uma revisão narrativa / The role of phonological awareness for reading, writing and mathematics in Brazilian studies and main assessment instruments: a narrative review / El papel de la conciencia fonológica para la lectura, la escritura y las matemáticas en los estudios brasileños y los principales instrumentos de evaluación: una revisión narrativa

Introdução: A consciência fonológica é uma habilidade muito importante para leitura, escrita e matemática em muitos anos escolares. A sua investigação e avaliação tem sido realizada em diversos contextos com populações típicas ou atípicas para entender como ela se desenvolve e, consequentemente, contribuir para pesquisas sobre desempenho acadêmico. Objetivo: O objetivo deste trabalho éestudar a influência da consciência fonológica no desempenho acadêmico em estudos brasileiros e apresentar os principais instrumentos padronizados utilizados na avaliação desta habilidade. Métodos: Realizou-se busca de artigos dos últimos cinco anos, nas bases de dados LILACS e SciELO usando descritores em português: "consciência fonológica" e "leitura" ou "escrita" ou "matemática" ou "desempenho acadêmico" ou "habilidade acadêmica", assim como descritores em inglês usando mesmas expressões. Foram selecionados estudos de acesso livre, realizados no Brasil, publicados em português, inglês ou espanhol, que utilizaram um instrumento padronizado e apresentaram os descritores mencionados no título ou resumo. Resultados: Dos 18 artigos analisados, 17 concluíram que a consciência fonológica foi importante para a leitura, escrita e matemática, sendo que a leitura e escrita foram as habilidades mais investigadas. Os instrumentos usados avaliam principais componentes da consciência fonológica e foram desenvolvidos por autores brasileiros. Conclusão: Os achados evidenciam que a consciência fonológica é uma habilidade muito importante para o desempenho acadêmico em diversas séries escolares. Reforça-se a necessidade de monitoramento, avaliação e estimulação precoce com a habilidade em crianças típicas e atípicas.

Introduction: Phonological awareness is a very important skill for reading, writing and math in many school years. Its investigation and evaluation has been carried out in different contexts with typical or atypical populations to understand how it develops and consequently contribute to research on academic performance. Objective: The aim of this paper is to study the influence of phonological awareness on academic performance in Brazilian studies and to present the main standardized instruments used in the assessment to this skill. Methods: Articles from the last five years were searched in LILACS and SciELO databases using descriptors in English: "phonological awareness" and "reading" or "writing" or "mathematics" or "academic performance" or "academic ability", as well as descriptors in Portuguese using the same expressions. Open access studies carried out in Brazil, published in Portuguese, English or Spanish, which used a standardized instrument and presented the descriptors mentioned in the title or abstract, were selected. Results: Of the 18 articles analyzed, 17 concluded that phonological awareness was important for reading, writing and mathematics, with reading and writing being the most investigated skills. The instruments used assess the main components of phonological awareness and were developed by Brazilian authors. Conclusion: The findings show that phonological awareness is a very important skill for academic performance in different grades. It reinforces the need for monitoring, assessment, and early intervention with skill in typical and atypical children.

Introducción: La conciencia fonológica es una habilidad muy importante para la lectura, la escritura y las matemáticas en muchos años escolares. Su investigación y evaluación se ha realizado en diferentes contextos con poblaciones típicas o atípicas para comprender cómo se desarrolla y consecuentemente contribuir a la investigación sobre el rendimiento académico. Objetivo: El objetivo de este trabajo es estudiar la influencia de la conciencia fonológica en el rendimiento académico en los estudios brasileños y presentar los principales instrumentos estandarizados utilizados en la evaluación de esta competencia. Métodos: Se buscaron artículos de los últimos cinco años en las bases de datos LILACS y SciELO utilizando descriptores en portugués: "consciência fonológica" e "leitura" ou "escrita" ou "matemática" ou "desempenho acadêmico" ou "habilidade acadêmica", así como descriptores en Inglés usando las mismas expresiones. Se seleccionaron estudios de acceso abierto realizados en Brasil, publicados en portugués, inglés o español, que utilizaron un instrumento estandarizado y presentaron los descriptores mencionados en el título o resumen. Resultados: De los 18 artículos analizados, 17 concluyeron que la conciencia fonológica es importante para la lectura, la escritura y las matemáticas, siendo la lectura y la escritura las habilidades más investigadas. Los instrumentos utilizados evalúan los principales componentes de la conciencia fonológica y fueron desarrollados por autores brasileños. Conclusión: Los hallazgos muestran que la conciencia fonológica es una habilidad muy importante para el desempeño académico en los diferentes grados. Refuerza la necesidad de seguimiento, evaluación e intervención temprana con habilidad en niños típicos y atípicos.

Effectiveness of an Ultrasound Visual Biofeedback Training for Tongue Shape Assessment During Speech Sound Production.

PURPOSE: This proof-of-concept study examined the effectiveness of an ultrasound visual biofeedback (UVB) training within the Participatory Adult Teaching Strategy framework for instructing speech-language pathologists (SLPs) on the assessment of sonographic tongue configuration for remediation of speech sound errors. METHOD: This research followed a multiple-baseline, multiple-probe single-case research methodology replicated across behaviors for data collection and analysis. Two school-based SPLs with no previous knowledge or experience with UVB were recruited. RESULTS: Visual analysis of data and effect size calculations using the percentage of nonoverlapping data indicated that training was highly effective in teaching SLPs skills for the assessment of sonographic tongue configuration and how to promote changes in tongue configuration for the remediation of speech sound errors. CONCLUSIONS: This study addressed the current gap in the literature regarding the lack of empirical evidence of UVB training for SLPs. Our findings support the exploration of evidence-based teaching strategies to train SLPs in the use of UVB for assessment of tongue configuration and remediation of speech sound errors. This can be of interest to academic programs and organizers of training opportunities through continued education units.

Moving Beyond Single Word Acquisition of Speech Sounds to Connected Speech Development With Dynamic Assessment.

PURPOSE: The aim of this study was to document speech sound development across early childhood from a dynamic assessment (DA) perspective that captures a breadth of linguistic environments using the Glaspey Dynamic Assessment of Phonology (Glaspey, 2019), as well as to provide normative data for speech-language pathologists to compare speech skills when making clinical decisions and provide historical context. Targets of English were evaluated via DA for the (a) age of acquisition in single words; (b) continued development through connected speech; (c) early, mid, and late sequence; and (d) differences between single word and connected speech productions. METHOD: Data were extracted from the reported results of the norming study for the Glaspey Dynamic Assessment of Phonology, which included a representative sample of 880 children ages 3 years to 10;11 (years;months). Comparisons were made with 49 items including multisyllabic words, clusters, and phonemes of English across word positions. RESULTS: Assessment with DA showed that acquisition in single words is nearly complete by age 6 years with a 90% mastery level, and the sequence suggests an Early-13, Mid-16, and Late-14 for items by word position. In connected speech, a wider range of progression is evident from the emergence of sound production at 50%, 75%, and 90% mastery levels with observed changes between ages 3 and 10 years. CONCLUSIONS: Given a DA approach across connected linguistic environments, children continue to progress in their development of speech sounds from early childhood well into their school-age years and for some sounds beyond the age of 10 years. DA challenges the language system to better reflect children's developmental progression.

Optimizing linguistic materials for feature-based intelligibility assessment in speech impairments.

Assessing the intelligibility of speech-disordered individuals generally involves asking them to read aloud texts such as word lists, a procedure that can be time-consuming if the materials are lengthy. This paper seeks to optimize such elicitation materials by identifying an optimal trade-off between the quantity of material needed for assessment purposes and its capacity to elicit a robust intelligibility metrics. More specifically, it investigates the effect of reducing the number of pseudowords used in a phonetic-acoustic decoding task in a speech-impaired population in terms of the subsequent impact on the intelligibility classifier as quantified by accuracy indexes (AUC of ROC, Balanced Accuracy index and F-scores). A comparison of obtained accuracy indexes shows that when reduction of the amount of elicitation material is based on a phonetic criterion-here, related to phonotactic complexity-the classifier has a higher classifying ability than when the material is arbitrarily reduced. Crucially, downsizing the material to about 30% of the original dataset does not diminish the classifier's performance nor affect its stability. This result is of significant interest to clinicians as well as patients since it validates a tool that is both reliable and efficient.

Using peer-assessment to mitigate variability in graduate students' phonetic transcription skills.

Phonetic transcription is a cornerstone skill in the practice of speech-language pathology. Several factors may impact transcription proficiency including when it was learned, how it was learned, and whether practice continued. Graduate student cohorts are often comprised of students from several different universities and vastly different experiences, resulting in differing levels of proficiency in phonetic transcription. Bringing students to the same proficiency level is time-consuming and often involves re-teaching this skill, which detracts from teaching advanced material. Therefore, the purpose of the present study was to explore the use of peer-assessment of phonetic transcription to mitigate these differences in proficiency. Thirty-four graduate students participated in an experimental study investigating proficiency in phonetic transcription as a result of peer-assessment activities. The students also rated and described their opinions about the peer-assessment process. The results of pretest to posttest measures indicated that students who were not at ceiling at pretest improved their phonetic transcription skills significantly. Results of the survey indicated that not only did students enjoy the process, but they also stated that it promoted self-reflection and improvement of their skills, regardless of proficiency at pretest. These findings suggest that peer-assessment is a beneficial way for students to engage in improving their phonetic transcription skills.

Diagnostic validity, accuracy and inter-rater reliability of a phonological assessment for Danish-speaking children.

PURPOSE: The identification and differential diagnosis of children with speech sound disorders (SSD) is an important task of paediatric speech-language pathologists (SLPs). A correct identification requires valid and reliable assessment tools. Therefore, the aim of the present study was to investigate the diagnostic validity and accuracy as well as inter-rater reliability of the phonology test of LogoFova which was developed for Danish-speaking children. METHOD: Investigation was carried out on two Danish-speaking populations: 61 suspected typically developing (TD) children and 61 children with suspected speech sound disorder aged 2-6 years. All children were assessed with the single-word picture-naming test of LogoFoVa. In order to determine diagnostic validity, it was investigated whether the test differentiated TD children from children with SSD as well as subgroups of SSD via a phonetic and phonological pattern analysis. Two different cut-off criteria were applied for the definition of patterns. Sensitivity and specificity as well as likelihood ratios were additionally calculated. To determine inter-rater reliability, transcriptions, pattern analyses and subgrouping were compared across raters. RESULTS: Overall, diagnostic validity of the picture-naming test of LogoFoVa was good as differentiation between TD children and children with suspected SSD as well as amongst subgroups of SSD (articulation impairment, phonological delay and atypical speech development) was possible. However, accuracy of differentiation between TD children and children with SSD was affected by the cut-off criterion applied. Inter-rater reliability was found to be almost perfect for transcription and moderate for identification of phonological processes as well as for subgrouping. Again, agreement rates depended on the cut-off criterion chosen for the definition of a phonological pattern. CONCLUSION: LogoFoVa was found to be a reliable and valid clinical tool for the identification and subgrouping of children with SSD in Danish SLP practice if a new cut-off criterion was applied.

Comportamiento de los parámetros diadococinéticos orales en escolares de primero básico y su relación con el nivel sociocultural y el desempeño fonético-fonológico / Behavior of the oral diadochokinetic parameters in primary school students and its relationship with the sociocultural level and phonetic-phonological performance

El objetivo de esta investigación es evaluar el comportamiento de los parámetros diadococinéticos orales en una población de escolares de primero básico, pertenecientes a dos niveles socioculturales y con diferente desempeño fonético-fonológico. Para alcanzar este objetivo se evaluó el rendimiento diadococinético oral de los participantes a través de la repetición monosilábica de [pa], [t̪a] y [ka] utilizando el método de emisión de sílabas en un tiempo determinado. El análisis de las emisiones se llevó a cabo con el programa Motor Speech Profile, el cual entregó los valores de medición para cinco parámetros diadococinéticos (DDKavp, DDKavr, DDKcvp, DDKjit, DDKcvi). Por otra parte, el desempeño fonético-fonológico fue analizado a través de la Pauta de Clasificación de Ajustes Fonético-Fonológicos (CLAFF). Los resultados obtenidos mostraron diferencias significativas entre ambos grupos socioculturales solo para los parámetros DDKcvp/%/ y DDKjit/%/, mientras que el resto de los parámetros diadococinéticos se comportó de manera similar. El grupo de niños del nivel sociocultural bajo tuvo una mayor variabilidad de la tasa DDK y mayor porcentaje de perturbaciones. Se observaron relaciones significativas entre algunos ajustes fonéticos-fonológicos y algunos parámetros diadococinéticos.

The aim of this research is to evaluate the behavior of the oral diadochokinetic parameters in first grade students, who belong to two different sociocultural environments and have different phonetic-phonological performance. To reach this objective, the oral diadochokinetic parameters were evaluated through monosyllabic repetition of [pa], [t̪a] and [ka] using the syllable emission method in a specific time. The syllable emission analysis was carried out through the Motor Speech Profile program, which provided with measurement values for five diadochokinetic parameters (DDKavp, DDKavr, DDKcvp, DDKjit, DDKcvi). On the other hand, the phonetic-phonological performance was analyzed through the Classification of Phonetic and Phonological Adjustments (CLAFF). The results showed differences between both sociocultural groups only for the parameters DDKcvp/%/ y DDKjit/%/, while the other diadochokinetic parameters behaved in a similar way. The low sociocultural children group had a higher variability in the DDK parameters and a higher percentage of disturbances. Significant relations could be seen between some phonetic-phonological adjustments and some diadochokinetic parameters.

Attention, task demands, and multitalker processing costs in speech perception.

Determining how human listeners achieve phonetic constancy despite a variable mapping between the acoustics of speech and phonemic categories is the longest standing challenge in speech perception. A clue comes from studies where the talker changes randomly between stimuli, which slows processing compared with a single-talker baseline. These multitalker processing costs have been observed most often in speeded monitoring paradigms, where participants respond whenever a specific item occurs. Notably, the conventional paradigm imposes attentional demands via two forms of varied mapping in mixed-talker conditions. First, target recycling (i.e., allowing items to serve as targets on some trials but as distractors on others) potentially prevents the development of task automaticity. Second, in mixed trials, participants must respond to two unique stimuli (i.e., one target produced by each talker), whereas in blocked conditions, they need respond to only one token (i.e., multiple target tokens). We seek to understand how attentional demands influence talker normalization, as measured by multitalker processing costs. Across four experiments, multitalker processing costs persisted when target recycling was not allowed but diminished when only one stimulus served as the target on mixed trials. We discuss the logic of using varied mapping to elicit attentional effects and implications for theories of speech perception. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Dynamic assessment in spelling and morphological awareness in Greek: The case of a transparent orthography.

BACKGROUND: Recent research is in favor of the use of dynamic assessment as an important method of combining assessment and intervention in a unified framework for typically and non-typically developing children. However, research is still sparse, in the evaluation of morphological awareness, especially for phonologically regular languages. AIMS: This study aimed to investigate the role of dynamic assessment in the evaluation of morphological awareness in Greek children. METHODS: Forty Greek participants (7-8 years old) allocated to an experimental (N = 21) and a control group (N = 19) were preliminary assessed on reading syllables/words, spelling words, vocabulary and morphological awareness. They were also evaluated on static assessments of spelling and word-formation of morphologically complex words, while only the experimental group was evaluated on dynamic assessments of the same tasks. RESULTS: Children achieved significantly higher performance on the dynamic assessment tasks in comparison to their static ones. Correlations indicated that the degree of children's progress depended greatly on their initial literacy and language skills, while regression analyses revealed that static tasks made a unique contribution to their dynamic performance. CONCLUSIONS: The results underline the role of dynamic assessment in the evaluation of morphological awareness in a phonologically regular language with rich morphology, such as Greek.

Two for the price of one: Concurrent learning of words and phonotactic regularities from continuous speech.

To acquire the words of their language, learners face the challenge of tracking regularities at multiple levels of abstraction from continuous speech. In the current study, we examined adults' ability to track two types of regularities from a continuous artificial speech stream: the individual words in the speech stream (token level information), and a phonotactic pattern shared by a subset of those words (type level information). We additionally manipulated exposure time to the language to examine the relationship between the acquisition of these two regularities. Using a ratings test procedure, we found that adults can extract both the words in the language and their phonotactic patterns from continuous speech in as little as 3.5 minutes of listening time. Results from a 2AFC testing method provide converging evidence that adults rapidly learn both words and their phonotactic patterns. Together, the findings suggest that adults are capable of concurrently tracking regularities at multiple levels of abstraction from brief exposures to a continuous stream of speech.