Effects Of Pecs On Manding And Speech Development For...

Another study by Tincani, Crozier, and Alazetta (2006) looked at the effects of PECS on manding and speech development for school-aged children. The study had two different parts, the first study involved two children with ASD, and the study wanted to increase the amount of independent manding, displayed when a child exchanges a picture symbol for an object without prompting. The researchers followed the PECS guidelines in a delayed multiple baseline design study, where participant one was taught phases I-IV of PECS and participant two was taught phases I and II of PECS. Both participants greatly increased their independent manding over the course of the study, especially as they advanced through the phases of PECS. Participant two required more than twice as many sessions as participant one to meet the acquisition criteria for phases I and II and therefore did not have the opportunity to learn subsequent phases before the experiment ended. Participant two did not use any measurable speech during the study and therefore was not used for study two. Participant one demonstrated only vocal approximations (vocalization that was clearly not the name of the item the participant was manding) instead of word vocalization and participant two did not use any measurable speech during the study. Therefore, neither participant qualified to participate in the second part of the study. (Tincani, Crozier, Alazetta, 2006). The second part of the study performed by Tincani, Crozier, andShow MoreRelatedLanguage Development Is A Central Characteristic Of Autism Spectrum Disorder ( Asd )1774 Words   |  8 PagesLiterature Review Delays in language development is a central characteristic of autism spectrum disorder (ASD). Walker and Snell (2013) suggest that children who demonstrate poor communication skills often times are more likely to engage in problematic behaviors. The literature provides substantial evidence that functional communication training (FCT) is an effective intervention to use as a replacement behavior to decrease maladaptive behaviors for children with ASD. In a study conducted by Lambert