Stakeholder validation of a Sepedi core vocabulary list as a resource for augmentative and alternative communication.

PURPOSE: The development of culturally and linguistically appropriate resources to support communication interventions for underserved communities is an urgent necessity. The purpose of the study was to obtain stakeholder feedback on vocabulary items from a Sepedi core vocabulary list developed as a resource for vocabulary selection for augmentative and alternative communication (AAC) systems, and to expand the list based on stakeholders' vocabulary recommendations. METHOD: A questionnaire was used to obtain the ratings of 57 stakeholders regarding the importance of including 155 Sepedi words from the Sepedi core vocabulary list on an AAC system for a child with receptive language skills at the level of a 4-year-old or higher. Stakeholders also suggested additional words to include on the system. RESULT: All words were rated as important or very important. However, there was a statistically significant inverse relationship between the average frequency of occurrence of words belonging to a specific category and the average importance rating that stakeholders assigned to words in that category. A total of 48 words were additionally suggested by three or more stakeholders. CONCLUSION: Stakeholder ratings validated the list as relevant to consult in vocabulary selection for Sepedi AAC systems for children. Stakeholder-suggested words may be a useful supplement to this list.

Learning graphic symbols in two languages: Effects of monolingual teaching.

PURPOSE: Limited research exists to guide augmentative and alternative communication (AAC) intervention for children from multilingual backgrounds. When a graphic symbol-based AAC system is provided to children, they need to learn the meaning of the graphic symbols. This study determined the effect of teaching the association between a graphic symbol and a spoken word in one language on the ability of bilingual children without disabilities to transfer this learning to their second language. METHOD: A one-group pre-test-post-test design was used. The ability of 30 English-Afrikaans bilingual children aged 4-5 years to provide the spoken words associated with nine graphic symbols in English and Afrikaans was evaluated before and after teaching them the symbol-word associations in English. RESULT: Correct symbol-word associations in English increased from a median of 0-9 post-teaching, while correct symbol-word associations in Afrikaans increased from a median of 0-6. A moderate positive relationship was identified between children's performance on symbol-word associations in Afrikaans during the post-test and their use of Afrikaans in the home. CONCLUSION: Results suggest the presence of positive transference of graphic symbol-word associations learnt in one language to another known language. The implications of this finding on the provision of multilingual AAC intervention are discussed.

Designing electronic graphic symbol-based AAC systems: a scoping review. Part 1: system description.

PURPOSE: This is the first of two papers summarizing studies reporting on the design of electronic graphic symbol-based augmentative and alternative communication (AAC) systems, to determine the state of the field. The aim of this paper was to provide an overview of the general characteristics of the studies and to describe the features of the systems designed. METHODS: A scoping review was conducted. A multifaceted search resulted in the identification of 28 studies meeting the selection criteria. Data were extracted relating to four areas of interest, namely (1) the general characteristics of the studies, (2) features of the systems designed, (3) availability of the systems to the public, and (4) the design processes followed. In this paper, findings relating to the first three areas are presented. RESULTS: Most study authors were affiliated to fields of engineering and/or computer science and came from high-income countries. Most studies reported the design of AAC applications loaded onto mobile technology devices. Common system features included customizable vocabulary items, the inclusion of graphic symbols from both established AAC libraries and other sources, a dynamic grid display, and the inclusion of digital and/or synthetic speech output. Few systems were available to the public. CONCLUSIONS: Limited justifications for many of the complex design decisions were provided in the studies, possibly due to limited involvement of rehabilitation professionals during the design process. Furthermore, few studies reported on the design of graphic symbol-based AAC systems specifically for middle- and low-income contexts and also for multilingual populations.Implications for rehabilitationComplex design decisions about electronic graphic symbol-based augmentative and alternative communication (AAC) systems should be made purposefully and with sufficient justification.Increased collaboration between designers and rehabilitation professionals during the design of electronic graphic symbol-based systems could improve the products.Design of AAC systems for populations residing in low and middle-income contexts and also for multilingual populations are urgently needed.

Determining the core vocabulary used by Sepedi-speaking children during regular preschool activities.

PURPOSE: In order to provide equitable communication intervention and support services to clients from diverse cultural and linguistic backgrounds, the development of language-specific resources for assessment and intervention is needed. The purpose of the study was to develop a core vocabulary list based on language samples from Sepedi-speaking children, in order to make it available as a resource to inform vocabulary selection for augmentative and alternative communication (AAC) systems for children in need of AAC from a Sepedi language background. METHOD: The speech of six typically developing Sepedi-speaking children aged 5-6 years was recorded using small body-worn audio recording devices. Children were recorded during their regular pre-school day. The recordings were transcribed, coded and analysed. RESULT: The composite transcript consisted of 17 579 words, of which 1023 were different words. The core vocabulary was determined by identifying all words that were used with a minimal frequency of 0.05%, and were used by at least half of the participants. The Sepedi core vocabulary consisted of 226 words that accounted for 88.1% of the composite sample. CONCLUSION: The core vocabulary determined in this study represents a small pool of reusable linguistic elements that form the grammatical framework of the Sepedi language. As such, is a valuable resource that can be used to assist with vocabulary selection for children who require AAC and who come from a Sepedi language background.

The core vocabulary of South African Afrikaans-speaking Grade R learners without disabilities.

BACKGROUND: Augmentative and alternative communication (AAC) can enable individuals with little or no functional speech to communicate functionally in a variety of communication contexts. AAC systems for individuals who are not (yet) fully literate often require that the vocabulary for the system be preselected. By including the most commonly- and most frequently-used words (core vocabulary) in an AAC system, access to novel utterance generation can arguably be facilitated. At present, no Afrikaans core vocabulary list based on children's speech samples exists. OBJECTIVES: This study aimed to identify the most frequently- and commonly-used words of South African Afrikaans-speaking Grade R learners without disabilities. METHOD: Spontaneous speech samples were collected from 12 Afrikaans-speaking Grade R learners during regular preschool activities. Samples were transcribed and analysed to determine the number of different words used, the frequency with which each word was used, as well as the commonality of word use across the 12 participants. RESULTS: A total of 239 words met the criteria for inclusion in the core vocabulary (words used with a frequency of more than 0.05% in the sample, and used by at least half of the participants). These words accounted for 79.4% of words used in the entire speech sample. CONCLUSION: The established core vocabulary consists of a relatively small set of words that was found to represent a large proportion of speech. AAC team members may consider including these words on Afrikaans AAC systems that are intended to give access to a measure of novel utterance generation.

Determining a Zulu core vocabulary for children who use augmentative and alternative communication.

Vocabulary selection is an important aspect to consider when designing augmentative and alternative communication (AAC) systems for children who have not yet developed conventional literacy skills. AAC team members have used core vocabulary lists (representing words most commonly and frequently used by speakers of a natural language) as a resource to assist in this process. To date, there are no core vocabulary lists for Zulu. Therefore, the aim of this study was to identify the vocabulary most frequently and commonly used by Zulu-speaking preschool children, in order to inform vocabulary selection for peers who use AAC. Communication samples from 6 Zulu-speaking participants without disabilities were collected during regular preschool activities. Analyses were conducted both by orthographic words and by morphological analysis of formatives. Due to the linguistic and orthographic structure of Zulu, an analysis by formatives was found to be more useful to determine a core vocabulary. The number of different formatives used, frequency of use, and commonality of use among the participants were identified. A total of 213 core formatives were identified; core formatives related to language structure were used more frequently than those that related to lexical content. The characteristics of this Zulu core vocabulary were consistent with those of core vocabularies established in other languages. Implications for the design of Zulu AAC systems are discussed.

Multilingualism and augmentative and alternative communication in South Africa - Exploring the views of persons with complex communication needs.

BACKGROUND: Augmentative and alternative communication (AAC) can assist persons with complex communication needs to communicate competently with a variety of communication partners in a variety of contexts. However, AAC systems and intervention often do not take multilingual aspects into consideration. OBJECTIVE: This small-scale exploratory study had three aims, namely: (1) to describe the self-reported language skills of multilingual South African adults using AAC, (2) to describe the languages and communication modalities they used in interaction and (3) to obtain their views regarding access to various languages. METHODS: Twenty-seven adults using AAC were recruited via an empowerment programme, as well as an email list for persons interested in AAC, and provided responses to a questionnaire. To compensate for access and written language challenges, the questionnaire was administered with help and/or as a face-to-face interview where needed. Responses were analysed using mostly descriptive statistics. RESULTS: Participants generally could not express themselves in all the languages they understood and were regularly exposed to. Speech-generating devices specifically gave access almost exclusively to English. Participants expressed a desire to increase their expressive language repertoire, and mentioned both limitations of communication technology as well as their own literacy skills as barriers to overcome in this regard. CONCLUSION: In order for multilingual South African adults using AAC to express themselves in multiple languages, appropriate AAC systems and interventions as well as literacy learning opportunities need to be developed and provided. KEYWORDS: adult, augmentative and alternative communication; multilingualism; complex communication needs, language and communication skills; self-report, views.

AAC services for multilingual populations: South African service provider perspectives.

BACKGROUND: In South Africa, many persons in need of augmentative and alternative communication (AAC) come from multilingual backgrounds. There is as yet a limited evidence base (locally and internationally) for the provision of AAC services to multilingual populations. The perspectives of service providers can assist in gaining an understanding of current practices and the factors that influence these. AIMS: The study aimed to obtain the perspectives of AAC service providers about practices in providing AAC systems and AAC intervention to clients from multilingual backgrounds. METHODS & PROCEDURES: Fifteen AAC service providers were purposefully chosen to participate in one of three focus groups - two face-to-face and one online focus group. Data from the face-to-face focus groups was transcribed verbatim. Thematic analysis was used to identify themes and subthemes in the data. OUTCOMES & RESULTS: Four overarching themes were identified, namely (a) current practices, (b) factors influencing current practices, (c) service provides' orientation towards different language options in AAC intervention, and (d) needs and desired developments regarding AAC technology. This paper reports on the first three themes. Service providers reported their practices to range from a focus on L1 exclusively, L2 exclusively, to a multilingual (sequential or simultaneous) approach. The South African language context, family language preferences and choices, service provider skill and knowledge, as well as AAC technology were identified as factors influencing their practices. Although many viewed access to multiple languages through AAC as positive, they also expressed concerns and reservations about providing multilingual AAC services. CONCLUSIONS & IMPLICATIONS: Although service providers in general saw the need to give clients from multilingual backgrounds access to multiple languages using AAC, this did not always translate into multilingual AAC practices. Both extrinsic factors (e.g. the lack of appropriate AAC devices, software and apps giving access to non-English languages) and intrinsic factors (service providers' language competency and their beliefs about the cognitive demands of multilingual AAC systems) influenced their practices and choices. Appropriate AAC service delivery to multilingual populations in South Africa would require not only appropriate AAC technology developments, but also research evidence to establish the efficacy of multilingual AAC interventions for clients with a variety of characteristics.

The perspectives of adults with aphasia and their team members regarding the importance of nine life areas for rehabilitation: a pilot investigation.

OBJECTIVES: Client-centred rehabilitation implies that persons with aphasia and their significant others are actively involved in all decisions regarding rehabilitation, including the setting of rehabilitation priorities and goals. This study aimed to describe and compare the perspectives of adults with aphasia, their significant others and their speech-language pathologists (SLPs) regarding the importance of nine life areas for the rehabilitation of adults with aphasia. METHOD: A total of 15 adults with expressive aphasia rated the importance of nine life areas using the Talking Mats™ framework. A questionnaire was used to obtain the ratings of 15 of their significant others and the 15 SLPs treating them. RESULTS: Most life areas were rated as important to work on in rehabilitation by most participants. The adults with aphasia rated the areas as important more frequently than their significant others and SLPs. All participants rated Communication as important. Statistically significant differences were noted for three of the nine life areas. DISCUSSION: The life areas which the participants were questioned about seem to provide a good starting point for rehabilitation teams to find common ground for collaborative goal setting. The Talking Mats™ approach allowed adults with aphasia to participate in the process. It can be a useful tool to promote client-centred rehabilitation for adults with expressive communication difficulties.

Teachers' perceptions of implementation of aided AAC to support expressive communication in South African special schools: a pilot investigation.

Although the provision of assistive technology for students with disabilities has been mandated in South African education policy documents, limited data are available on the implementation of aided augmentative and alternative communication (AAC) in classrooms. This pilot investigation used a concurrent mixed-methods survey design to determine the extent to which aided AAC was implemented to foster students' expressive communication in preschool to Grade 3 classrooms in special schools from six urban school districts in the Gauteng (the smallest, most affluent and most densely populated of the nine South African provinces), and also obtained teachers' perceptions of this process. A total of 26 teachers who taught students who used aided AAC for expression participated. Although there is evidence of provision and also implementation of aided AAC in classrooms, various limitations still exist. Teachers identified an array of factors that influenced the implementation of aided AAC, including those related to themselves, the classroom context, the characteristics of aided AAC, students using AAC, and other stakeholders. These factors are discussed in the light of international literature as well as the local context, and are used as a basis to suggest a research agenda for AAC in the South African education system.

An exploration of pain-related vocabulary: implications for AAC use with children.

Children with significant communication difficulties who experience pain need appropriate means to communicate their pain in order to receive appropriate treatment. Augmentative and alternative communication (AAC) strategies could be used to enable children to self-report pain. The aim of this research study was to identify the common vocabulary children with typical development use to describe physical pain experiences and develop and socially validate an appropriate pain-related vocabulary list for children who use or could benefit from using AAC. A sequential, exploratory, mixed-method design was employed. This paper focuses on the quantitative phase. A set of scenarios was developed to gather pain-related vocabulary appropriate for children aged 6;0-7;11 (years;months) and children aged 8;0-9;11, from 74 children, 61 parents, and 56 teachers. Some 629 pain-related words or phrases were suggested and then classified into seven categories. A composite list of the 84 most frequently occurring pain-related vocabulary items was compiled and socially validated by three adults who used AAC. They emphasized the need to individualize vocabulary and provided suggestions for vocabulary organization for display on any type of AAC system. Despite similarities in the categories of words offered by the various respondent groups, the differences underscore the importance of more than one perspective (particularly that of children and adults) in generating a comprehensive vocabulary list.

Teaching graphic symbol combinations to children with limited speech during shared story reading.

The aim of this study was to determine the effect of an intervention strategy on the production of graphic symbol combinations in children with limited speech. Four children between the ages of 6;5 and 10;8 (years;months) with limited speech participated in the study. A single-subject, multiple probe design across three different types of semantic relations was used. Generalization to untrained exemplars was also monitored. Results were mixed across the four participants: two participants learned to combine symbols across different types of relations, maintained these skills post intervention, and generalized their skills to untrained combinations; and two participants showed less consistent evidence of learning. The effects, as measured during structured probes, were strong for one participant, moderate for another, and inconclusive for the two others. Responses during shared story reading suggested that the measurement probes might have underestimated participants' ability to combine symbols.