ABA Strategies for Language Acquisition and Development

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In the Ingvarsson (2010) study, they used echoic prompting as well as constant prompt delay to mand for answers to questions by saying “I don’t know please tell me”. In this study they took baseline data by asking 56 questions. They would mark these questions as known or unknown, depending on if the child answered the question. During the training phase, the experimenter used echoic prompting and constant prompt delay. The experimenter would ask the child a question that was labeled unknown in the baseline phase. After the experimenter would ask the question, he would immediately provide a verbal prompt. The verbal prompt that was used was “I don’t know, please tell me.”. After the participant response was modeled correctly, the experimenter would model the correct answer. If the child did not repeat the correct answer, the experimenter would provide a prompt. When the child stated the correct answer, the experimenter would provide descriptive praise. The results of this study showed that following the intervention 2 participants had quick acquisition and generalization. One participant gains did not meet acceptable levels until edibles items were made contingent. Lastly, one other participant’s correct answers did not increase until after direct training of correct answers. Overall, these results provide a replication and extension of the Ingvarsson et al. (2007) study. (Ingvarsson, 2010) The following studies looked at interventions used to help in language development using Discrete Trial Training. This study done by Krantz, Zalewski, Hall, Fenski & McClannahan (1981) was performed to teach complex language productions. They taught children to describe objects and pictures. This was done using four-term sentences. The children were also taught how to answer numerous why, what, and how questions about immediate events and then past events with

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