Percentage Of Consonants Correct Research Articles

Extraction of primary maxillary incisors and children’s speech production: A case series

ABSTRACT Dental caries (tooth decay) is a disease with a significant global burden. Management may necessitate the extraction of teeth to restore oral health. The association between dental extractions and children’s speech is unclear, with clinical implications for speech-language pathologists and dentists. This case series describes a prospective study reporting the impact of primary maxillary incisor teeth extraction on speech sound accuracy for three children (C1 aged 5;6 (years; months), C2 aged 4;6, C3 aged 3;10). Their speech was assessed using the Diagnostic Evaluation of Articulation and Phonology (DEAP) and the Intelligibility in Context Scale (ICS) before (T1) and 1 month after dental treatment (T2). Speech analysis included the percentage of consonants correct (PCC) and error-type analyses. Caregiver and child perception of the child’s oral health-related quality of life (OHRQoL) were assessed pre- and post-operatively using a modified Scale of Oral Health Outcomes for 5-year-old children (SOHO-5). At T1, all three children scored >1 standard deviation below the mean on normative data in the DEAP. There was no clinically significant change in PCC for any child (C1 T1: 89.6%, T2: 90.6%, C2 T1: 78.0%, T2: 75.9%, C3 T1: 56.1%, T2: 63.1%). OHRQoL measures were improved for C1 by the carergiver report and remained stable for C2 and C3 and all child reports. Speech sound difficulties were present before dental treatment in all participants and extraction of primary maxillary incisors did not significantly impact speech production. Dental extractions appear to be independent from speech production in this case series of preschool children.

Comparing Speech Production Errors of 3 to 5 Year Old Bengali Children with Cleft Lip and/or Palate in Two Contexts: Word Naming And Sentence Repetition

Research suggests various standardized assessment tools to collect and analyze the speech of the individual with cleft lip and/or palate (CLP). Despite the importance of developing an assessment framework for the growing CLP population, documentation on Bengali cleft speech is limited. This study aims to investigate the phonetic differences that happen in the speech sound production of 3 to 5-year-old Bengali-speaking CLP children in two different contexts: single word and sentence repetition. It also aims to evaluate the effects of these two speech assessment tools in those children’s phonological evaluation to identify the proper evaluation for CLP individuals. In total, 12 Bengali-speaking CLP children from 3 to 5 years old participated in each test. Thus, data has been collected from a sample of 24 with 79-word stimuli. Two types of speech materials were used: single-word naming and sentence repetition tasks. The samples were analyzed using narrow phonetic transcription for targeted speech items. The percentage of consonants correct (PCC), percentage of correct places (PCP), percentage of correct manners (PCM), as well as phonological simplification processes (PSP) were assessed from the samples. Results showed a range of word structures and place-manner features produced by CLP children in both tasks. Also, the PCC, PCP, PCM, and PSP results were considerably less accurate in the sentence repetition task, suggesting that the task may provide a more accurate assessment of the CLP population. Social Science Review, Vol. 40(2), December 2023 Page: 205-224

Child speech developmental norms in Greek monolinguals: whole word and consonant accuracy

ABSTRACT Child phonological development in standard Greek is aptly represented by both single-case and cross-sectional studies. While some quantitative measures exist, such as the 75% criterion in the acquisition of singletons and clusters, reported norms require replication to fine-tune existing indicators, inform non-existent ones, and better reflect children’s typical developmental speech in contemporary Greece. Our cross-sectional study addresses this gap, in terms of consonant inventory acquisition, and percentage accuracy of words, singletons, clusters, and cluster reductions. Phonological Assessment for Greek (PAel) procedures facilitated data elicitation from 254 Greek-speaking participants, aged 2;0–7;0, equally represented for gender. Our study comprehensively informs quantitative norms on whole word accuracy (WWA), percentage of consonants correct (PCC), PCC variation across the different age groups of children, and the WWA-PCC correlation along the developmental path in this cross-sectional study. A schematic representation models children’s normative PCC-WWA profiles, facilitating the determination of phonological disorder in Greek with direct clinical application on diagnosis and intervention.

The effect of otitis media with effusion on phonological performance of preschool children

ObjectivesPhonological development is dependent on the integrity of the auditory system. Otitis media with effusion (OME) may affect speech perception in children and therefore phonological development. The aim of this study was to investigate the impact of persistent OME on the phonological performance of preschool children.MethodsSixty children with persistent OME who were candidates for myringotomy and ventilation tube insertion were included in this prospective observational study. We assessed their phonological skills before and after surgery (3 and 6 months) by phonological production tasks that included calculation of percentage of consonants correct (PCC) and process density index (PDI).ResultsWe detected preoperative poor phonological performance in 91.7% of children. We found statistically significant differences in PCC and PDI between the three time periods. Also, there was a significant improvement after 6 months compared to 3 months.ConclusionsOME has an adverse consequence on the phonological performance of preschool children, it can affect different domains such as PCC and PDI. The findings of this study revealed that myringotomy with ventilation tube insertion for children with persistent OME could aid in the development of intact phonological skills.

Long-term speech outcome after anterior distraction osteogenesis of the maxilla in patients with cleft lip and palate.

Advancement of the maxilla may increase the distance between the soft palate and the posterior pharyngeal wall in patients with cleft lip and palate, implying a risk of velopharyngeal dysfunction. The aim was to evaluate long-term speech outcome in a consecutive series of patients treated with distraction osteogenesis (DO). Fourteen out of the 16 patients agreed to participate. A long-term speech follow-up was performed 1.5to 13.5 years after DO. For two participants, audio recordings before DO were missing, and for another one, it was incomplete. The percentage of consonants correct (PCC) based on phonetic transcription and perceived velopharyngeal competence rated on a three-point scale were assessed before and after DO by three independent judges, based on audio recordings of reading of standardised sentences. Also, the participants were asked how they perceived their speech after DO. Changes in PCC were insignificant. Four participants perceived deteriorated speech related to DO. In two cases, the subjective deterioration did not correlate to results from perceptual assessment. In two others, the subjective deterioration correlated with the perceptual assessment, and the velopharyngeal function was judged as being incompetent after DO. After secondary velopharyngeal surgery, velopharyngeal function improved to competent in one case and marginally incompetent in the other. The results need to be interpreted with caution due to methodological limitations but indicate that some patients develop deteriorated velopharyngeal function after DO. The impact on articulation needs to be further explored. It is important that patients are informed before treatment of the risk of velopharyngeal dysfunction after DO.

Phonological development in first language Laki-speaking children aged 3 to 5 years: A pilot study

Purpose To date there are no studies of speech sound acquisition in Laki, a language spoken in western regions of Iran. Thus, we set out a pilot study to investigate the speech development of 56 first language Laki-speaking children (aged 3–5 years). Method Single words were elicited through a picture naming test specifically developed for this study. After recording and transcribing of speech samples, percentage of consonants correct (PCC), percentage of vowels correct (PVC), and proportion of whole word proximity (PWP) were documented in four age groups (36–41, 42–47, 48–53, and 54–59 months) and both genders. Children’s phonetic inventories and consonant and vowel accuracy were also described. Result All the sounds were considered as emerging by 53 months of age. For speech sound accuracy, all the speech sounds except /ɢ, z, ŋ, ʒ/ were mastered by 5 years. The effect of age on PCC values was significant. Also, age groups showed significant differences for PWP but were not significant for PVC. Boys and girls did not differ for PCC, PVC, and PWP values. Conclusion From a theoretical perspective, findings contribute to theories about phonological acquisition in general and will enable crosslinguistic comparisons. From an applied standpoint, language-specific characteristics are identified, which are much needed for clinical practice with Laki-speaking children.

Enhanced milieu teaching with phonological emphasis: A pilot, telepractice study for parent training in early intervention

Purpose This pilot study evaluated enhanced milieu teaching with phonological emphasis (EMT + PE) parent training intervention delivered through telepractice and its impact on parent implementation, child speech outcomes, and child language outcomes. Method A multiple baseline design across behaviours was used to assess response to parent training and child outcomes. The intervention was delivered to four parents and their young children with repaired cleft palate. Speech production, receptive language, and expressive language were assessed prior to intervention. EMT + PE strategies including matched turns, modelling and expansions, and prompting/speech recasting were taught to parents using the teach-model-coach-review model. Social validity questionnaires were administered pre- and post-intervention to assess parents’ rating of competence and confidence for managing their child’s early development. Reliability and procedural fidelity were conducted. Result All parents increased their use of modelling and expansions, and prompting and speech recasting in response to training, as evidenced by large effect sizes. Children also responded positively to these strategies by increasing percentage of consonants correct (PCC) and target vocabulary, although PCC gains were less than observed in a prior hybrid telepractice and face-to-face intervention. Social validity measures indicated parents increased their confidence to provide intervention for their children. Conclusion This pilot study indicated that effective parent training in EMT + PE strategies can be delivered through telepractice.

Oral diadochokinetic production in children with typical speech development and speech-sound disorders.

AIMS: To investigate the developmental trajectory of the rate and perceptual assessment of oral diadochokinesis (DDK) in typically developing children compared with adults. Also to examine the characteristics of DDK productions in children with speech sound disorders (SSD) and the relationship between DDK production and percentage of consonants correct (PCC). Participants were 316 typically developing children and 90 children with SSD from 3 to 9 years old, as well as 20 adults with normal speech. The mono-, bi- and trisyllabic nonsense strings containing Korean tense consonants and the vowel [a] were used for DDK tasks. The number of iterations per s was measured as the DDK rate for each stimulus. The perceptual assessment of DDK productions was also performed for regularity, accuracy and rate. The DDK rates increased throughout childhood, but the oldest children, 9-year-olds in the current study, did not achieve adult-like rates for all mono- and trisyllabic strings. Children with SSD also did not show significant differences from typically developing children when the DDK productions were analysed using only accurate tokens. The PCC of children with SSD showed higher correlations with regularity, accuracy and rate of perceptual ratings than the timed DDK rate. This study highlighted the fact that the comprehensive evaluation of DDK productions may provide even more useful information about children's oral motor skills. What is already known on the subject Rates of DDK reflect the motor skills of the articulatory systems independently of phonological skills; therefore, the tasks are widely used in the diagnostic evaluations of speech disorders in both children and adult populations. However, a substantial number of studies have questioned the validity and usefulness of DDK rates for evaluating speech abilities. Also, the literature suggested that the measure of DDK rate alone does not provide a clear and useful indication of children's oral motor skills. DDK tasks should be analysed in terms of accuracy and consistency as well as rate. What this paper adds to the existing knowledge The literature reporting normative DDK performance has mainly been based on English speakers. As different consonants have different temporal characteristics, the linguistic and segmental features of DDK tasks can impact the DDK rate. This study established a norm for DDK rate for Korean-speaking children and investigated the developmental trajectory of DDK performance in typically developing children compared with adults. This study suggested that the comprehensive evaluation of DDK productions may provide even more useful information about children's oral motor skills by examining the characteristics of DDK productions in children with SSD. What are the potential or actual clinical implications of this work? This study provided normative data of young Korean-speaking children aged 3-9 years. Normative data in children under 5 years of age are valuable given that the majority of children referred for speech difficulty assessments are between 3 and 5 years of age, but only a few studies have provided the normative data in young children. This study showed that many children could not complete DDK tasks correctly and provided additional support for the notion that other aspects of DDK performance, including accuracy and regularity, may yield more useful diagnostic indications than timed DDK rates alone.

The Relationship between Nonword Repetition and Speech Perception and Phonological Memory in Children with Speech Sound Disorders

Objectives: This study aimed to examine nonword repetition (NWR) performance of children with speech sound disorders (SSD) compared with children with typical development (TD) and investigate the relationship between NWR and speech perception, phonological short-term and phonological working memory, and percentage of consonants correct (PCC). Methods: Participants included 8 children with Pure SSD, 7 children with SSD accompanied by language disorders (LD) and 9 children with TD aged 5 to 6 years. Children completed NWR tasks, speech perception tests focusing on initial and final consonants in one-syllable words, and immediate memory tasks examining forward and reverse recall of familiar words. NWR performances were examined according to the entire, retrieval and sequencing accuracies and analyzed by 9 error types. Results: Children with SSD and LD performed significantly lower total and retrieval accuracies of NWR than children with TD. Substitution errors of articulation place were most frequent in all groups. Only children with SSD exhibited syllable structure errors. No significant group differences existed in speech perception. Children with SSD and LD showed lower phonological short-term memory than children with TD. Both children with SSD and LD and with Pure SSD performed significantly lower phonological working memory than children with TD. NWR showed significant relationship with speech perception, phonological memory, and PCC. The relationships between NWR and phonological short-term memory and PCC were striking. Conclusion: This study underlines that children with SSD and LD show remarkable difficulties in NWR and supports the close relationship of NWR with phonological short-term memory and speech accuracy.

Scandcleft randomized trials of primary surgery for unilateral cleft lip and palate: Speech proficiency at 10years of age.

To assess consonant proficiency and velopharyngeal function in 10-year-old children born with unilateral cleft lip and palate (UCLP) within the Scandcleft project. Three parallel group, randomized, clinical trials were undertaken as an international multicentre study by nine cleft teams in five countries. Three different surgical protocols for primary palate repair (Arm B-Lip and soft palate closure at 3-4months, hard palate closure at 36months, Arm C-Lip closure at 3-4months, hard and soft palate closure at 12months, and Arm D-Lip closure at 3-4months combined with a single-layer closure of the hard palate using a vomer flap, soft palate closure at 12months) were tested against a common procedure (Arm A-Lip and soft palate closure at 3-4months followed by hard palate closure at 12months) in the total cohort of 431 children born with a non-syndromic UCLP. Speech audio and video recordings of 399 children were available and perceptually analysed. Percentage of consonants correct (PCC) from a naming test, an overall rating of velopharyngeal competence (VPC) (VPC-Rate), and a composite measure (VPC-Sum) were reported. The mean levels of consonant proficiency (PCC score) in the trial arms were 86-92% and between 58% and 83% of the children had VPC (VPC-Sum). Only 50-73% of the participants had a consonant proficiency level with their peers. Girls performed better throughout. Long delay of the hard palate repair (Arm B) indicated lower PCC and simultaneous hard and soft palate closure higher (Arm C). However, the proportion of participants with primary VPC (not including velopharyngeal surgeries) was highest in Arm B (68%) and lowest in Arm C (47%). The speech outcome in terms of PCC and VPC was low across the trials. The different protocols had their pros and cons and there is no obvious evidence to recommend any of the protocols as superior. Aspects other than primary surgical method, such as time after velopharyngeal surgery, surgical experience, hearing level, language difficulties and speech therapy, need to be thoroughly reviewed for a better understanding of what has affected speech outcome at 10years. What is already known on the subject Speech outcomes at 10years of age in children treated for UCLP are sparse and contradictory. Previous studies have examined speech outcomes and the relationship with surgical intervention in 5-year-olds. What this study adds to the existing knowledge Speech outcomes based on standardized assessment in a large group of 10-year-old children born with UCLP and surgically treated according to different protocols are presented. While speech therapy had been provided, a large proportion of the children across treatment protocols still needed further speech therapy. What are the potential or actual clinical implications of this work? Aspects other than surgery and speech function might add to the understanding of what affects speech outcome. Effective speech therapy should be available for children in addition to primary surgical repair of the cleft and secondary surgeries if needed.

The implementation of the ‘Testing of Phonological Skills (TOPS)’ tool: a computer-based phonological analysis algorithm

ABSTRACT A computer-based algorithm was used for phonological analysis of Cypriot Greek (CG) word productions elicited from a sample of typically developing (TD) CG-speaking children. Specific focus was on (a) creating a complete CG phonetic and phonological test; (2) implementing a novel computer-based algorithm in the analysis of selected speech stimuli from CG-speaking TD children; and (3) examining independent and relational speech patterns based on the computer-based algorithm. The probe word list consisted of 182 target words and included all CG consonants in all word positions. Normative data were collected on a representative sample of 20 TD CG-speaking children aged 3;0 to 6;0 years. Productions were phonetically transcribed and inserted into the computer algorithm for automatic data reduction of measurable dependent variables including the percentage of consonants correct (PCC), phonetic inventory size (PIS), word-initial onset deletion (IOD), and Regressive Assimilation (RASS). Correlation analyses revealed significant interactions among phonetic and phonological patterns as well as predictive relationships of PCC and segmental word-position. The implementation of this specific probe word list permitted a homogeneous and inclusive sampling analysis. Participants presented specific developmental trajectories of segmental and phonological patterns as a function of age.

Speech sound acquisition in Azeri Turkish-speaking children in Iran

BackgroundCurrently no data exist on the acquisition of speech sounds in Azeri Turkish-speaking children in Iran. This investigation was conducted to describe phonological development in Azeri Turkish-speaking children. MethodsA total of 120 typically developing Azeri Turkish-speaking children within the age range of 3;0 to 4;11 years were recruited. They were asked to name pictures in the Azeri Turkish Speech Test and their productions were analyzed to determine consonant acquisition, Percentage of Consonants Correct (PCC), Percentage of Vowels Correct (PVC), and Whole Word Proximity (WWP) according to sex and age. In addition, PCC values in terms of consonant position in the syllable (syllable-initial and syllable-final), and manner of articulation were calculated. ResultsFor consonant acquisition, they mastered all consonants except [d, d͡z, t͡s, ʒ, v, ɟ] by 4;11 years of age. PCC values increased with increasing age (H(3)= 67.212, p <0.001). In terms of manner of articulation, PCC showed that nasals were most accurately produced and trill sound least accurate. The effect of sex on PCC values was not significant U (Nmales =60, Nfemales =60)= 1686.5, z = -0.600, p=.54). WWP values were also found to increase in older children H(3)=46.94, p<.001). Similarly, the effect of sex on WWP values was not significant U (Nmales =60, Nfemales =60)= 1782.5, z = -0.09, p=.92). ConclusionsChildren acquiring speech sounds in the Azeri Turkish language show some similar tendencies to children acquiring other languages but are also different. Findings of the present research describe phonological development in Azeri Turkish-speaking children, which has not been documented before.

Validation of the Intelligibility in Context Scale in Tamil (ICS-Tamil) and insights into children’s speech sound accuracy

ABSTRACT The study aimed to develop and validate the Intelligibility in Context Scale in Tamil (ICS-Tamil) among preschoolers. A total of 170 children between three-to-six years of age [125 children with typical speech and 45 children with suspected speech sound disorder (SSD)] participated in the study. Parents completed the ICS-Tamil. Children's speech production was assessed using a single-word list of 50 Tamil words. Children's responses were transcribed using the PHON software to calculate percentage of consonants correct (PCC), percentage of vowels correct (PVC) and percentage of phonemes correct (PPC). ICS-Tamil demonstrated excellent test-retest reliability (ICC = 0.99, 95% CI = 0.98-0.99) and internal consistency reliability (α = 0.92). Bivariate correlation analyses showed a moderate correlation with PCC (r s = 0.67), PPC (r s = 0.65) and PVC (r s = 0.53), suggesting adequate construct validity. Children with typical speech scored significantly higher on the ICS-Tamil (M = 4.51, SD = 0.44) in comparison to children with suspected SSD (M = 3.46, SD = 0.54), establishing the known group validity of ICS-Tamil. A score lower than a cut-off of 4.07 on the ICS-Tamil average score demonstrated 93% sensitivity and 80% specificity in distinguishing children with suspected SSD from children with typicalspeech. Speech errors seen in children from both groups predominantly included errors in retroflex sounds. The psychometric properties of ICS-Tamil support its use to measure children's functional intelligibility across multiple environmental contexts and communication partners among Tamil-speaking children. In addition, the data on speech sound acquisition and intelligibility contribute to the much-needed data corpus to support speech-language pathologists' assessment, diagnosis and intervention planning for children with speech sound disorders in Tamil.

Fijian school students’ Fiji English speech sound acquisition

Purpose: The aim of this study was to investigate Fijian students’ acquisition of Fiji English speech sounds. Method: Participants were 72 multilingual students (5–10 years) living in Fiji who spoke the Fijian or Fiji Hindi dialects of Fiji English. The students’ productions of single words from the Diagnostic Evaluation of Articulation and Phonology (DEAP) were analysed according to dialect using the Children’s Independent and Relational Phonological Analysis (CHIRPA). Result: Most English consonants were acquired by 6;0. English consonants that were not in the inventories of Fijian or Fiji Hindi were the last acquired, while those that were common between English and the two languages were some of the earlier acquired consonants. Percentage of consonants correct (PCC) for Fiji English was significantly lower for Grade 1 students (M = 93.01, SD = 0.07) in comparison to Grade 4 students (M = 99.03, SD = 0.01). Plosive and nasal sounds were acquired by 90% of the students earlier than fricative, approximant and affricate sounds, though acquisition of some plosive and fricative sounds varied between Fiji English dialects. All word-initial consonant clusters were acquired by 90% of the students by 9;6, with r-clusters tending to be the latest acquired. The acquisition of word-final consonant clusters was highly variable as students often produced appropriate dialectal variants. Conclusion: Multilingual Fijian children may acquire English specific sounds later than their monolingual English-speaking peers. Consideration of the language environment and analysis of the speech sample with reference to the child’s dominant English dialect is imperative for valid identification of speech sound disorder (SSD) in children who speak different dialects of English.

A pilot study shows the positive effects of continuous airway pressure for treating hypernasal speech in children with infantile-onset Pompe disease

Children with infantile-onset Pompe disease (IOPD) demonstrate hypernasality. This study aimed to evaluate whether continuous positive airway pressure (CPAP) training may reduce hypernasality in children with IOPD. Five children with IOPD were enrolled in a single-subject experimental design of type A-B-A′. The intervention comprised an 8-week, 6-day-per-week regimen of CPAP training at home. Participants continued traditional speech therapy once per week throughout the 24-week study duration. The outcome measurements included the degree of hypernasality (DH), the percentage of consonants correct (PCC), and the speech intelligibility score (SIS). C-statistic analysis with an α of 0.05 was used along with visual analysis to assess speech changes. Three patients completed the study. During the CPAP training phase, the DH, PCC, and SIS were significantly improved compared with the baseline (p < 0.05). At the follow-up phase, both DH and SIS were improved compared with the baseline (p < 0.05), but the PCC had returned to the baseline level. CPAP training demonstrated effectiveness in reducing nasal sounds in IOPD patients. Further studies training younger children with normal hearing may help elucidate the persistence of the effects in children with IOPD.

A comparison of two phonological screening tools for French-speaking children

Purpose: To examine two screening tools for phonological production, the Evaluation Sommaire de la Phonologie chez l’enfant d’âge préscolaire (ESPP) and the Test de Phonologie du Français Canadien-Dépistage (TPFC-D), developed according to differing theoretical perspectives. The TPFC-D, designed according to nonlinear phonology, includes more words and contains a greater variety of segments across word structure as compared to the ESPP, which was guided by a linear phonological framework. The greater response rate to test items, time of administration, and phonological complexity were expected on the TPFC-D. Method: Each screening tool was administered to 14 4-year-old French-speaking children living in Central Canada. Paired samples t-tests compared children’s responses on the two tasks with regards to (a) response rate and time of administration, (b) an overall percentage of consonants correct (PCC) and percentage of vowel correct (PVC), and (c) complexity of productions (i.e. PCC and PVC in relation to word structure, Word Shape Match, Whole Word Match, Phonological Mean Length of Utterance (pMLU) and Proportion of Whole-Word Proximity). Result: Item response rates were higher for the TPFC-D whereas time of administration, PCC and PVC were similar for both the ESPP and TPFC-D. Complexity measures showed a higher proportion of deletions in clusters and higher pMLUs on the TPFC-D compared to the ESPP. Conclusion: Both screening measures are appropriate for speech-language pathologists who want to assess quickly pre-school-aged children. Since the TPFC-D is phonologically more complex, it is recommended for clinicians needing to screen children who likely present with multiple speech sound errors across their phonological system.

Assessment of Intelligibility in Children with Velopharyngeal Insufficiency: The Relationship between Intelligibility in Context Scale and Experimental Measures

Purpose: The purpose of this study was to investigate the clinical application of the Intelligibility in Context Scale (ICS) instrument in children with velopharyngeal insufficiency (VPI). This study investigated the relationship between clinical speech outcomes and parental reports of speech intelligibility across various communicative partners. Methods: The ICS was completed by the parents of 20 English-speaking children aged 4–12 years diagnosed with VPI. The parents were asked to rate their children’s speech intelligibility across communication partners using a 5-point scale. Clinical metrics obtained using standard clinical transcription on the Picture-Cued SNAP-R Test were: (1) percentage of consonants correct (PCC), (2) percentage of vowels correct (PVC), and (3) percentage of phonemes correct (PPC). Nasalance from nasometer data was included as an indirect measure of nasality. Intelligibility scores obtained from naive listener’s transcriptions and speech-language pathologists’ (SLP) ratings were compared with the ICS results. Result: Greater PCC, PPC, PVC, and transcription-based intelligibility values were significantly associated with higher ICS values, respectively (r[20] = 0.84, 0.82, 0.51, and 0.70, respectively; p < 0.05 in all cases). There was a negative and significant correlation between ICS mean scores and SLP ratings of intelligibility (r = –0.74; p < 0.001). There was no significant correlation between ICS values and nasalance scores (r[20] = –0.28; p = 0.22). Conclusion: The high correlations obtained between the ICS with PCC and PPC measures indicate that articulation accuracy has had a great impact on parents’ decision-making regarding intelligibility in this population. Significant agreement among ICS scores with naive listener transcriptions and clinical ratings supports use of the ICS in practice.

Reliability of Outcome Measures to Assess Consonant Proficiency Following Cleft Palate Speech Intervention: The Percentage of Consonants Correct Metric and the Probe Scoring System.

Purpose This study compared the inter- and intrarater reliability of the percentage of consonants correct (PCC) metrics and the probe scoring system between an experienced and a less experienced rater and between two experienced raters. In addition, these outcome measures' ability to reflect changes following speech intervention was measured. Method During Phase 1, two raters (Rater 1 with 5 years of experience in cleft-related speech disorders and Rater 2 with limited experience in cleft-related speech disorders) independently assessed 134 speech samples at the word and sentence levels, which were collected on different data points before, during, and following a cleft palate speech intervention. During Phase 2, a third rater (with 8 years of experience) analyzed 34 speech samples. The percentage of consonants correct-revised, the percentage of correct places and manners, and probe scores at the word and sentence levels were measured. Results Poor-to-moderate interreliability between Raters 1 and 2 was found due to differences in error classification. Interrater reliability between Raters 1 and 3 was very good for both the PCC metrics and the probe scores. The interrater reliability for the amount of targets elicited was lower compared to the interrater reliability for the amount of targets correct. The probe scoring system demonstrated a greater ability to detect changes toward the correct production of the target consonant compared to the PCC metrics. Conclusions Having an experience with the assessment of cleft-related speech disorders is a crucial factor to gain reliable results. The interrater reliability for the PCC metrics and the probe scoring system between two experienced raters did not differ, suggesting that both outcome measures can be used in cleft palate speech intervention studies. Despite the ability of the probe scoring system to detect changes, further research should provide insight in the benefits of this system both for research and clinical purposes.

Consonant accuracy and intelligibility of Southern Vietnamese children

ABSTRACT Understanding typically developing children’s speech acquisition is useful to assist speech-language pathologists’ diagnosis and intervention planning for children with speech sound disorders. The aim of this research was to investigate Southern Vietnamese-speaking children’s speech accuracy and intelligibility. Participants were 132 children aged 3;0–5;11 living in Southern Viet Nam (Ho Chi Minh City) whose consonants, semivowels, vowels, and tones were assessed using the Vietnamese Speech Assessment (VSA) and parent-reported intelligibility was assessed using the Vietnamese version of the Intelligibility in Context Scale (ICS-VN). Participants’ percentage of consonants correct (PCC) was significantly lower for the younger children compared with the other age groups. Mean PCC was 89.19 (SD = 7.83) at 3;0–3;5 years and 99.31 (SD = 1.33) at 5;6–5;11 years. Percentage of semivowels correct was higher than the percentage of initial and final consonants correct. Participants produced tones and vowels accurately even from the youngest age group. On average, the participants were reported to be usually to always intelligible and were more intelligible with their parents than other communication partners. There was a positive, weak correlation between speech accuracy (PCC) and intelligibility (ICS-VN). There was no sex effect for PCC and no significant effect for age or sex on intelligibility. These data provide information about typical speech acquisition to support the emerging speech-language pathology profession in Viet Nam.

The Effect of Frenotomy on the Tongue Length, Motion, and Speech According to Age

Background and Objectives Ankyloglossia often results in articulation disorders, which depends on age, articulation ability, and mobility of the tongue. A primary treatment strategy includes surgery and/or speech therapy. This study aimed to evaluate the changes of the tongue length, tongue mobility, and percentage of consonants correct (PCC) after frenotomy. We investigated the optimal surgery timing for ankyloglossia.Subjects and Method A total of 136 patients underwent frenotomy for the tongue tie between January 2016 and December 2019. There were 90 males and 46 females, with the mean age of 5.23, which ranged from 2 to 10 years. The length of the tongue was measured for all patients during the operation preoperatively and postoperatively. The mobility of the tongue and PCC were performed preoperatively and 1 month after surgery by two speech therapists. Patients were divided according to age into three groups: 2-3 years, 4-5 years, and over 6 years old.Results The mean tongue length of all age groups was significantly elongated after surgery (&lt;i&gt;p&lt;/i&gt;&lt;0.05). After frenotomy, the mobility of tongue, including horizontal protrusion, protrusion with upward pointing, circumlocution, and lateral movement, was improved. Also, PCCs of all age groups were significantly improved after surgery (&lt;i&gt;p&lt;/i&gt;&lt;0.05).Conclusion Frenotomy can be an effective procedure for children with ankyloglossia in all age groups. After frenotomy, length of the tongue, mobility of the tongue and PCC were significantly improved.