The aim of this study is to assess information on voice quality features and to ascertain the variability of these features in specified groups. Groups were created based on gender and status of vocal training, in order to study the influence of these grouping variables on selected voice quality features. Gender was chosen as a grouping variable, because previous investigations clearly demonstrated differences in voice quality characteristics between men and women. These differences have implications for the creation of a normative database, concerning its proposed function as a frame of reference. Vocal training was intentionally introduced to give direction to what might be regarded as good vocal characteristics, as compared to characteristics of subjects without vocal training. Characteristics of the vocal apparatus and voice quality features can be acquired in many ways. Four practicable methods, easily employed in a clinical environment and extensively outlining the vocal apparatus and voice function, are used in this study. Results of these investigations are described in the following chapters.
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In dit document is het logopedisch onderzoek bij broddelen beschreven waarover internationaal consensus bestaat. Dit document is gepresenteerd op de website van de International Cluttering Association
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Formative assessment (FA) is an effective educational approach for optimising student learning and is considered as a promising avenue for assessment within physical education (PE). Nevertheless, implementing FA is a complex and demanding task for in-service PE teachers who often lack formal training on this topic. To better support PE teachers in implementing FA into their practice, we need better insight into teachers’ experiences while designing and implementing formative strategies. However, knowledge on this topic is limited, especially within PE. Therefore, this study examined the experiences of 15 PE teachers who participated in an 18-month professional development programme. Teachers designed and implemented various formative activities within their PE lessons, while experiences were investigated through logbook entries and focus groups. Findings indicated various positive experiences, such as increased transparency in learning outcomes and success criteria for students as well as increased student involvement, but also revealed complexities, such as shifting teacher roles and insufficient feedback literacy among students. Overall, the findings of this study underscore the importance of a sustained, collaborative, and supported approach to implementing FA.
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Objective In voice assessment, the evaluation of voice quality is a major component in which roughness has received wide acceptance as a major subtype of abnormal voice quality. The aim of the present study was to develop a new multivariate acoustic model for the evaluation of roughness. Method In total, 970 participants with dysphonia and 88 participants with normal voice were included. Concatenated voice samples of continuous speech and sustained vowel [a:] were perceptually judged on roughness severity. Acoustic analyses were conducted on the voiced segments of the continuous speech sample plus sustained vowel as well. A stepwise multiple linear regression analysis was applied to construct an acoustic model of the best acoustic predictors. Concurrent validity, diagnostic accuracy, and cross-validation were verified on the basis of Spearman correlation coefficient (rs), several estimates of the receiver operating characteristics plus the likelihood ratio, and iterated internal cross-correlations. Results Six experts were included for perceptual analysis based on acceptable rater reliability. Stepwise multiple regression analysis yielded a 12-variable acoustic model. A marked correlation was identified between the model and the perceptual judgment (rs = 0.731, P = 0.000). The cross-correlations confirmed a high comparable degree of association. However, the receiver operating characteristics and likelihood ratio results showed the best diagnostic outcome at a threshold of 2.92, with a sensitivity of 51.9% and a specificity of 94.9%. Conclusions Currently, the newly developed roughness model is not recommended for clinical practice. Further research is needed to detect the acoustic complexity of roughness (eg, multiplophonia, irregularity, chaotic structure, glottal fry, etc).
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Objective The evaluation of voice quality is a major component of voice assessment. The aim of the present study was to develop a new multivariate acoustic model for the evaluation of breathiness. Method Concatenated voice samples of continuous speech and the sustained vowel [a:] from 970 subjects with dysphonia and 88 vocally healthy subjects were perceptually judged for breathiness severity. Acoustic analyses were conducted on the same concatenated voice samples after removal of the non-voiced segments of the continuous speech sample. The development of an acoustic model for breathiness was based on stepwise multiple linear regression analysis. Concurrent validity, diagnostic accuracy, and cross validation were statistically verified on the basis of the Spearman rank-order correlation coefficient (rs), several estimates of the receiver operating characteristics plus the likelihood ratio, and iterated internal cross correlations. Results Ratings of breathiness from four experts with moderate reliability were used. Stepwise multiple regression analysis yielded a nine-variable acoustic model for the multiparametric measurement of breathiness (Acoustic Breathiness Index [ABI]). A strong correlation was found between ABI and auditory-perceptual rating (rs = 0.840, P = 0.000). The cross correlations confirmed a comparably high degree of association. Additionally, the receiver operating characteristics and likelihood ratio results showed the best diagnostic outcome at a threshold of ABI = 3.44 with a sensitivity of 82.4% and a specificity of 92.9%. Conclusions This study developed a new acoustic multivariate correlate for the evaluation of breathiness in voice. The ABI model showed valid and robust results and is therefore proposed as a new acoustic index for the evaluation of breathiness.
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Why a position statement on Assessment in Physical Education? The purpose of this AIESEP Position Statement on Assessment in Physical Education (PE) is fourfold: • To advocate internationally for the importance of assessment practices as central to providing meaningful, relevant and worthwhile physical education; • To advise the field of PE about assessment-related concepts informed by research and contemporary practice; • To identify pressing research questions and avenues for new research in the area of PE assessment; • To provide a supporting rationale for colleagues who wish to apply for research funds to address questions about PE assessment or who have opportunities to work with or influence policy makers. The main target groups for this position statement are PE teachers, PE pre-service teachers, PE curriculum officers, PE teacher educators, PE researchers, PE administrators and PE policy makers. How was this position statement created? The AIESEP specialist seminar ‘Future Directions in PE Assessment’ was held from October 18-20 2018, at Fontys University of Applied Sciences in Eindhoven, the Netherlands. The seminar aimed to bring together leading scholars in the field to present and discuss ‘evidence-informed’ views on various topics around PE assessment. It brought together 71 experts from 20 countries (see appendix 2) to share research on PE assessment via keynote lectures and research presentations and to discuss assessment-related issues in interactive sessions. Input from this meeting informed a first draft version of the statement. This first draft was sent to all participants of the specialist seminar for feedback, from which a second draft was created. This draft was presented at the AIESEP International Conference 2019 in Garden City, New York, after which further feedback was collected from participants both on site and through an online survey. The main contributors to the writing of the position statement are mentioned in appendix 1. Approval was granted by the AIESEP Board on May 7th, 2020. Largely in keeping with the main themes of the AIESEP specialist seminar ‘Future Directions in PE Assessment’, this Position Statement is divided into the following sections: Assessment Literacy; Accountability & Policy; Instructional Alignment; Assessment for Learning; Physical Education Teacher Education (PETE) and Continuing Professional Development; Digital Technology in PE Assessment. These sections are preceded by a brief overview of research data on PE. The statement concludes with directions for future research.
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The findings suggest that CVT may be used as therapy in ABI populations with promising results. Both patient self-assessment and objective voice measures demonstrate improved voice function. Given the longitudinal nature of recovery in ABI patients, more studies are needed to qualify at which stage(s) of recovery the CVT interventions are most effective and beneficial. Randomized controlled trials for specific patient populations of ABI are needed to assess the interventions' effectiveness in specific ABI diagnoses. Toegang tot het artikel middels aankoop via deze link: https://pubs.asha.org/doi/full/10.1044/2023_PERSP-23-00003
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This study evaluates the maximum theoretical exposure to radiofrequency (RF) electromag- netic fields (EMFs) from a Fifth-generation (5G) New Radio (NR) base station (BS) while using four commonly used mobile applications: YouTube for video streaming, WhatsApp for voice calls, Instagram for posting pictures and videos, and running a Video game. Three factors that might affect exposure, i.e., distance of the measurement positions from the BS, measurement time, and induced traffic, were examined. Exposure was assessed through both instantaneous and time-averaged extrapolated field strengths using the Maximum Power Extrapolation (MPE) method. The former was calculated for every measured SS-RSRP (Secondary Synchronization Reference Signal Received Power) power sample obtained with a sampling resolution of 1 second, whereas the latter was obtained using a 1-min moving average applied on the applications’ instantaneous extrapolated field strengths datasets. Regarding distance, two measurement positions (MPs) were selected: MP1 at 56 meters and MP2 at 170 meters. Next, considering the measurement time, all mobile application tests were initially set to run for 30 minutes at both MPs, whereas the video streaming test (YouTube) was run for an additional 150 minutes to investigate the temporal evolution of field strengths. Considering the traffic, throughput data vs. both instantaneous and time-averaged extrapolated field strengths were observed for all four mobile applications. In addition, at MP1, a 30-minute test without a User Equipment (UE) device was conducted to analyze exposure levels in the absence of induced traffic. The findings indicated that the estimated field strengths for mobile applications varied. It was observed that distance and time had a more significant impact than the volume of data traffic generated (throughput). Notably, the exposure levels in all tests were considerably lower than the public exposure thresholds set by the ICNIRP guidelines.INDEX TERMS 5G NR, C-band, human exposure assessment, mobile applications, traffic data, maximum extrapolation method, RF-EMF.
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This paper proposes and showcases a methodology to develop an observational behavior assessment instrument to assess psychological competencies of police officers. We outline a step-by-step methodology for police organizations to measure and evaluate behavior in a meaningful way to assess these competencies. We illustrate the proposed methodology with a practical example. We posit that direct behavioral observation can be key in measuring the expression of psychological competence in practice, and that psychological competence in practice is what police organizations should care about. We hope this paper offers police organizations a methodology to perform scientifically informed observational behavior assessment of their police officers’ psychological competencies and inspires additional research efforts into this important area.
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OBJECTIVE: The purpose of this study was to provide a description of the language and speech (intelligibility, voice, resonance, articulation) in a 7-year-old Dutch speaking boy with Nager syndrome. To reveal these features comparison was made with an age and gender related child with a similar palatal or hearing problem. METHODS: Language was tested with an age appropriate language test namely the Dutch version of the Clinical Evaluation of Language Fundamentals. Regarding articulation a phonetic inventory, phonetic analysis and phonological process analysis was performed. A nominal scale with four categories was used to judge the overall speech intelligibility. A voice and resonance assessment included a videolaryngostroboscopy, a perceptual evaluation, acoustic analysis and nasometry. RESULTS: The most striking communication problems in this child were expressive and receptive language delay, moderately impaired speech intelligibility, the presence of phonetic and phonological disorders, resonance disorders and a high-pitched voice. The explanation for this pattern of communication is not completely straightforward. The language and the phonological impairment, only present in the child with the Nager syndrome, are not part of a more general developmental delay. The resonance disorders can be related to the cleft palate, but were not present in the child with the isolated cleft palate. One might assume that the cul-de-sac resonance and the much decreased mandibular movement and the restricted tongue lifting are caused by the restricted jaw mobility and micrognathia. To what extent the suggested mandibular distraction osteogenesis in early childhood allows increased mandibular movement and better speech outcome with increased oral resonance is subject for further research. CONCLUSION: According to the results of this study the speech and language management must be focused on receptive and expressive language skills and linguistic conceptualization, correct phonetic placement and the modification of hypernasality and nasal emission.
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