Receptive and expressive language difficulties are some of the core challenges facing children with Autism Spectrum Disorder (ASD). Emerging research suggests that for children with ASD receptive language is more impaired than expressive language. Specifically, abstract concepts like prepositions, are challenging for them. Aided augmented input has been shown to be an effective means of facilitating understanding in some children with ASD, however the amount of aided augmented input required to ensure effective understanding has not been determined. The aim of this study was to measure and compare the participants’ ability to follow instructions containing prepositions, under two conditions of aided augmented input. A with-in subject research design, involving 17 participants with ASD, was used to measure the accuracy of responses to instructions containing prepositions. Each participant was presented with 12 instructions. Half of the instructions were provided with 25% aided augmented input (prepositions only) referred to as Condition A, and the other half were presented with 75% aided augmented input (subject, preposition and location) referred to as Condition B. Their responses to the instructions were recorded and analyzed. Results suggest that there was no statistical difference between the two conditions of aided augmented input. Eight participants responded better under Condition A and five participants responded better under Condition B. Four participants responded equally under both conditions. The findings suggest that some participants may benefit from more aided augmented input and some from less aided augmented input. There is need for additional studies to determine the conditions of aided augmented input needed for the effective understanding of instructions containing prepositions and factors affecting the outcome. / Mini Dissertation (MA)--University of Pretoria, 2019. / Centre for Augmentative and Alternative Communication (CAAC) / MA / Unrestricted

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There is a growing population of individuals using Augmentative and Alternative Communication (AAC) in need of evidence-based intervention from highly qualified personnel. However, not all speech pathology programs offer AAC coursework and/or practicum opportunities, and practicing speech-language pathologists (SLPs) report low levels of confidence and expertise in working with individuals using AAC. Therefore, there is a need to develop more innovative pre-professional training programs to better equip the next generation of SLPs with the knowledge and skills necessary to provide high-quality, evidence-based AAC interventions. Telepractice is emerging as an inventive way to provide both direct and indirect intervention services, and could theoretically be used to support pre-professional training by providing clinicians the opportunity to engage in direct services with individuals using AAC concurrently while receiving supervision from a skilled mentor. A thorough review of the literature revealed limited information and data regarding tele-AAC for direct and indirect service delivery. This investigation examined the feasibility and effectiveness of utilizing telepractice to train pre-professional clinicians regarding AAC interventions while in the context of service delivery both on-site and via telepractice. A single-subject, multiple baseline design was employed to examine the impact of real-time supervisory guidance offered via telepractice to pre-professional clinicians (Active Consultation) on the performance of the clinicians and the clients in each service delivery condition. Data was gathered on the number of target language acts modeled by the clinicians and generated by the clients when Active Consultation was provided. The results supported the use of telepractice for supervision, and as a service delivery method for AAC users.

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The Center for Disease Control estimates that one in 88 births result in a diagnosis of autism (CDC, 2012). Of those individuals diagnosed with autism approximately 25-61% fail to develop vocal output capabilities (Weitxz, Dexter, & Moore, 1997). The use of Augmentative and Alternative Communication (AAC) systems, such as Picture Exchange (PE) and Voice Output Communication Aids (VOCA) has been demonstrated as effective for those individuals to acquire a mand repertoire (Mirenda, 2003). The focus of the current study was to compare mand acquisition using PE and the iPad as a VOCA, in terms of acquisition rate and participant device preference, and with regard to collateral effects on vocalizations and disruptive behaviors. Additionally, the study evaluated the effectiveness of a teaching strategy using constant time delay with full-physical prompts (Sigafoos, Doss, & Reichel, 1989) in the acquisition of a mand repertoire using PE and the iPad as a VOCA, in five preschool aged children with autism. Finally, the devices were assessed in terms of their social validity. Three participants acquired the ability to communicate using the iPad as a VOCA more readily and two participants acquired the ability to communicate more quickly using PE, while the overall rate of independent manding was higher for four participants using the VOCA. The results of the study also indicate that the use of a constant time delay procedure with full-physical prompts was effective in the acquisition of both PE and the VOCA device. Regarding preference, four participants demonstrated a clear preference for the VOCA device and one for PE, when presented with the option to respond with either device. With respect to collateral effects, the data were largely inconclusive. For one participant there was an overall increase in vocalizations, for one participant there was an overall decrease in vocalizations, for the remaining three there was no systematic change in their rate of vocalizations during or following communication training. Regarding disruptive behaviors, an overall decrease in the occurrence was seen for two participants, for the remaining three the rates of occurrence did not change systematically following communication training. Finally, in terms of social validity, both the VOCA device and PE were found to be acceptable communication tools, with educators reporting that they would not only include such training within their classroom routines, but would also recommend its use in the future. / Educational Psychology

The purpose of this study has been to examine the use of augmentative and alternative communication in special school The study examine which methods and various purpose AAC used by and with the students and what it is that determines what form to use according to educators. The research shows how important communication is for a child's cognitive development and that it is largely a question of competence on how AAC is used in special school. It is a qualitative study based on observations at three different special schools and three interviews with five educators who all work with students having development disabilities in early stages and use AAC in their daily activities. The empirical data has been analyzed from a socio-cultural perspective, focusing on the concepts of artifacts and mediation. The results show that they use both aided and unaided AAC. AAC are used to structure the day visually in schematically pictures, to enhance their speech, to help to show their intention and to help their memory. The result also shows that, according to educators, students' abilities and previous experience is crucial to which form of AAC that they will use. It is also clear that many cases the teachers themselves is the one who analyze the abilities that students have and then choose an AAC method to work with. Another factor that also influences is the financial resources allocated to special school and the teachers 'and assistants' lack of expertise in the field. The result also reveal that a very small portion of AAC use is about how students communicate with AAC, to make their opinions and voices heard in a more independent way. The conclusion is that there are many different forms of AAC in special school. The purpose of the AAC is usually about structuring and make the world more understandable to students. It is generally the student's abilities that determine what form of AAC used, but there are other factors that also affect. Financial resources and lack of expertise are some of these factors. In other words, the special teacher have in their profession an important role in which type of AKK that are used and in which knowledge those who working in special school have of AAC. / Syftet med studien är att undersöka användningen av alternativ och kompletterande kommunikation (AKK) i grundsärskolan. I studien undersöks vilka olika former och i vilka olika syften AKK används av och med eleverna, samt vad det är som avgör vilken form man använder enligt pedagogerna. Forskningen visar hur viktig kommunikationen är för ett barns kognitiva utveckling och att det till stor del handlar om kompetens på hur AKK-användningen ser ut. Studien är en kvalitativ undersökning som bygger på tre observationer i grundsärskolan samt tre intervjuer med fem pedagoger som alla arbetar med elever på tidig utvecklingsnivå och använder AKK i den dagliga verksamheten. Empirin har analyserats ur ett sociokulturellt perspektiv med fokus på begreppen artefakter och mediering. Resultatet visar på att det både används hjälpmedelsberoende och hjälpmedelsoberoende AKK. AKK används i syfte att strukturera vardagen visuellt i form av schemabilder, förstärka det talade språket, att förmedla sin vilja och som minneshjälp. Resultatet visar även på att det enligt pedagogerna är elevernas förmågor och tidigare erfarenheter som är avgörande för vilken form av AKK som används, det framgår också att det många fall är pedagogerna själva som analyserar vilka förmågor som eleverna har och därefter tar fram en AKK-metod som man arbetar med. En annan faktor som också påverkar är vilka ekonomiska resurser som tilldelats grundsärskolan samt pedagogers och assistenters brist på kompetens inom området. Resultatet visar även på att en väldigt liten del av AKK användandet handlar om hur eleverna kommunicerar med AKK för att göra sin röst hörd eller sina egna åsikter på ett mer självständigt sätt. Slutsatsen är att det finns många olika former av AKK i grundsärskolan. Syftet med AKK handlar oftast om att strukturera och göra omvärlden mer begriplig för eleverna. Det är i huvudsak elevens förmågor som avgör vilken form av AKK som används, men det finns andra faktorer som också spelar in. Ekonomiska resurser och brister i kompetens är några av dessa faktorer. Med andra ord så har specialläraren i sin profession en viktig roll i vilken typ av AKK som används och i hur kompetensen hos de som arbetar i grundsärskolan ser ut.