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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Comparison of Acquisition and Generalization of Tacts Across Three Stimulus Modes: A Replication Across Skill Levels

Nelson, Haley 28 October 2018 (has links)
Individuals with disabilities often have a limited tact repertoire. This study compared the acquisition and generalization of tacts taught using different stimulus modes within discrete trial training (DTT) with children who have a limited tacting repertoire. The three stimulus modes that were compared were videos, pictures, and 3D objects. This research replicated Gómez’s (2015) methodology with a participant pool with lower tacting skills. In addition, this study assessed for generalization of the acquired tacts to a novel exemplar. In this study, tact training required fewer sessions when the picture and 3D object were used as stimulus modes. These results were then replicated across stimulus sets with Abraham and Alex. Finally, in this study greater generalization was observed for the tacts trained with a 3D object.
2

Evaluating the Effectiveness of the PEAK-E in Teaching Receptive Metonymical Tacts Using Stimulus Equivalence Training Procedures

Stanley, Caleb R. 01 August 2016 (has links)
There currently exists limited published literature on methods for teaching complex verbal operants to individuals with autism. The purpose of the current study was to evaluate the effectiveness of the PEAK – E curriculum in teaching receptive metonymical tacts using stimulus equivalence training procedures to children with autism. The procedures described in the PEAK – E program 10P – Equivalence: Metonymical Tacts were replicated across three children diagnosed with autism using a multiple baseline experimental design. The results of the suggest that the procedures were effective in teaching receptive metonymical tacts, with all three participants achieving mastery criteria. The results support and extend on previous studies by providing an empirical demonstration of effective procedures to teach receptive metonymical tacts to children with autism. The current study adds to progress behavior analysis in the direction of a behavior analytic understanding of complex verbal behavior.
3

The Effects of an Instructional Package on the Emergence of Novel Intraverbals in Children with Autism

Macias, Heather A. 12 1900 (has links)
We evaluated the effects of an instructional package on the emergence of novel intraverbals in children diagnosed with autism. Participants were two boys with a diagnosis of autism who had tact and listener repertoires for common objects and events, some intraverbal responses, and showed an ability to learn new intraverbal responses through direct instruction prior to participating in the study. Tact training, listener training, sorting training, and mixed training (listener and tact training) were conducted with each participant, with a probe to test for emergent intraverbals following each training step. If some emergence was seen during a probe following a training step, probes were conducted with the remaining sets to test for emergence in those sets as well. Multiple-exemplar training was conducted following the training steps if all targets within a set did not meet the criterion for emergence during probes. Results showed that for one participant, all four training steps, in addition to multiple-exemplar training, were needed to see emergence in all targets during probes for two sets, with the last two sets requiring only tact training before all targets had emerged during probes. The second participant required only tact training during three sets, with listener training required for one target in one set before all targets in all sets emerged during probes.
4

Comparação entre procedimentos baseados em seleção de estímulos e topografia de respostas no aprendizado de tatos em crianças diagnosticadas com TEA / Comparison between procedures based on Stimuli Selection and Response Topography in tacts training for children with ASD

Souza, Marcelo Cabral de 05 September 2016 (has links)
Há ainda resultados controversos na literatura indicando a superioridade ou não do procedimento de seleção de estímulos em relação ao de emissão de diferentes topografias de respostas no ensino de comportamento verbal para indivíduos não verbais ou com repertório verbal limitado. Os resultados dos estudos publicados anteriormente, por possuírem dados conflitantes em diferentes populações com atraso no desenvolvimento, parecem não ser generalizáveis. O estudo teve por objetivo realizar comparações entre os dois procedimentos, em que diferentes tatos foram treinados, buscando com isso, caracterizar o procedimento que produzisse a) menor quantidade de respostas necessárias para atingir critério de aprendizagem e b) menor número de erros e c) maior número de respostas corretas no pós-teste de simetria. No presente estudo foram empregados três participantes, com idades entre três e treze anos, diagnosticados com o transtorno do espectro autista, sem outras comorbidades psiquiátricas. Para o estudo foram criadas duas condições experimentais divididas em duas fases cada, duas para Seleção de Estímulos e duas para Topografia de Respostas e cada uma das fases se utilizou de conjuntos de estímulos (um objeto, um símbolo não familiar e um sinal de linguagem de sinais) especialmente desenvolvidos para o estudo. A primeira condição foi a de resposta baseada em Topografia, em que o participante é exposto a um objeto e o experimentador pergunta o que é isso? . A criança tem até cinco segundos para fazer o sinal de língua de sinais arbitrária correspondente ao estímulo. A segunda condição foi a de resposta baseada em seleção de estímulos ( tais condições foram invertidas na Fase 2). O experimentador apresentava um objeto e a criança tinha até cinco segundos para apontar o símbolo não familiar correspondente, que era randomizado com outros dois estímulos arbitrários. A randomização foi produzida por sorteio dos conjuntos de estímulos e a posição dos mesmos foi alterada em posição e ordem de apresentação. Após a aplicação de C1 e C2 na fase 1 e aplicação de C2-C1 na fase 2, foi aplicado um pós-teste de simetria para os tatos treinados. Os resultados apontam que apesar de haver vantagem no procedimento baseado em Topografias de Respostas, pode haver um efeito de ordem significativo e que a direção de aplicação dos procedimentos não apresenta diferenças significativas entre si. Tais achados parecem coadunar com as ideias de Shaffer (1993) que defende a busca de métodos individualizados de acordo com os repertórios particulares de cada aluno e a união de procedimentos deve ser adotada como principal estratégia de ensino para crianças com TEA / There still are controversies in the literature regarding the superiority or not of the Selection Based procedure as compared to Topography Based in verbal behavior teaching for nonverbal individuals or individuals with limited verbal repertoire. The results of previously published studies, having conflicting data in different populations with developmental delay, do not seem to be generalizable. The study aimed to make comparisons between the two procedures in which different tacts were trained, seeking thereby to characterize the procedure that produced a) lower number of responses needed to meet criteria for learning, b) fewer errors and c) higher number of correct answers in symmetry posttest. The present study employed three participants, aged between three and thirteen, diagnosed with autism spectrum disorder without other psychiatric comorbidities. For the study were created two experimental conditions divided into two stages each, two for Stimuli Selection and two for Responses Topography. Each phase used stimuli sets (an object, an unfamiliar symbol and a speech signal signals) specially developed for the study. The first condition was the topography based response, in which the participant is exposed to an object and the experimenter asks \"what is this? \". The child had up to five seconds to make the arbitrary language sign corresponding to the stimulus. The second condition was a response based on stimuli selection (such conditions are reversed in phase 2). The experimenter had an object and the child had up to five seconds to point the corresponding unfamiliar symbol, which was randomized with two other arbitrary stimuli. Randomization was produced by drawing of the sets of stimuli and the position thereof was changed in position and presentation order. After application of C1 and C2 in phase 1 and applying C1-C2 in step 2, a symmetry post-test for trained tacts was applied. The results show that although the Topography Based procedure has its advantages, there may be a significant order effect. Also, the direction of application of the procedures does not show significant differences. These findings appear to be consistent with the ideas of Shaffer (1993) who argues for the pursuit of methods customized to the particular repertoires of each student and that a unification of procedures should be adopted as the main teaching strategy for children with ASD
5

Comparação entre procedimentos baseados em seleção de estímulos e topografia de respostas no aprendizado de tatos em crianças diagnosticadas com TEA / Comparison between procedures based on Stimuli Selection and Response Topography in tacts training for children with ASD

Marcelo Cabral de Souza 05 September 2016 (has links)
Há ainda resultados controversos na literatura indicando a superioridade ou não do procedimento de seleção de estímulos em relação ao de emissão de diferentes topografias de respostas no ensino de comportamento verbal para indivíduos não verbais ou com repertório verbal limitado. Os resultados dos estudos publicados anteriormente, por possuírem dados conflitantes em diferentes populações com atraso no desenvolvimento, parecem não ser generalizáveis. O estudo teve por objetivo realizar comparações entre os dois procedimentos, em que diferentes tatos foram treinados, buscando com isso, caracterizar o procedimento que produzisse a) menor quantidade de respostas necessárias para atingir critério de aprendizagem e b) menor número de erros e c) maior número de respostas corretas no pós-teste de simetria. No presente estudo foram empregados três participantes, com idades entre três e treze anos, diagnosticados com o transtorno do espectro autista, sem outras comorbidades psiquiátricas. Para o estudo foram criadas duas condições experimentais divididas em duas fases cada, duas para Seleção de Estímulos e duas para Topografia de Respostas e cada uma das fases se utilizou de conjuntos de estímulos (um objeto, um símbolo não familiar e um sinal de linguagem de sinais) especialmente desenvolvidos para o estudo. A primeira condição foi a de resposta baseada em Topografia, em que o participante é exposto a um objeto e o experimentador pergunta o que é isso? . A criança tem até cinco segundos para fazer o sinal de língua de sinais arbitrária correspondente ao estímulo. A segunda condição foi a de resposta baseada em seleção de estímulos ( tais condições foram invertidas na Fase 2). O experimentador apresentava um objeto e a criança tinha até cinco segundos para apontar o símbolo não familiar correspondente, que era randomizado com outros dois estímulos arbitrários. A randomização foi produzida por sorteio dos conjuntos de estímulos e a posição dos mesmos foi alterada em posição e ordem de apresentação. Após a aplicação de C1 e C2 na fase 1 e aplicação de C2-C1 na fase 2, foi aplicado um pós-teste de simetria para os tatos treinados. Os resultados apontam que apesar de haver vantagem no procedimento baseado em Topografias de Respostas, pode haver um efeito de ordem significativo e que a direção de aplicação dos procedimentos não apresenta diferenças significativas entre si. Tais achados parecem coadunar com as ideias de Shaffer (1993) que defende a busca de métodos individualizados de acordo com os repertórios particulares de cada aluno e a união de procedimentos deve ser adotada como principal estratégia de ensino para crianças com TEA / There still are controversies in the literature regarding the superiority or not of the Selection Based procedure as compared to Topography Based in verbal behavior teaching for nonverbal individuals or individuals with limited verbal repertoire. The results of previously published studies, having conflicting data in different populations with developmental delay, do not seem to be generalizable. The study aimed to make comparisons between the two procedures in which different tacts were trained, seeking thereby to characterize the procedure that produced a) lower number of responses needed to meet criteria for learning, b) fewer errors and c) higher number of correct answers in symmetry posttest. The present study employed three participants, aged between three and thirteen, diagnosed with autism spectrum disorder without other psychiatric comorbidities. For the study were created two experimental conditions divided into two stages each, two for Stimuli Selection and two for Responses Topography. Each phase used stimuli sets (an object, an unfamiliar symbol and a speech signal signals) specially developed for the study. The first condition was the topography based response, in which the participant is exposed to an object and the experimenter asks \"what is this? \". The child had up to five seconds to make the arbitrary language sign corresponding to the stimulus. The second condition was a response based on stimuli selection (such conditions are reversed in phase 2). The experimenter had an object and the child had up to five seconds to point the corresponding unfamiliar symbol, which was randomized with two other arbitrary stimuli. Randomization was produced by drawing of the sets of stimuli and the position thereof was changed in position and presentation order. After application of C1 and C2 in phase 1 and applying C1-C2 in step 2, a symmetry post-test for trained tacts was applied. The results show that although the Topography Based procedure has its advantages, there may be a significant order effect. Also, the direction of application of the procedures does not show significant differences. These findings appear to be consistent with the ideas of Shaffer (1993) who argues for the pursuit of methods customized to the particular repertoires of each student and that a unification of procedures should be adopted as the main teaching strategy for children with ASD

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