Comparing acquisition of and preference for manual signs, picture exchange, and speech-generating devices in nine children with autism spectrum disorder

Llyween CouperSchool of Health Sciences, College of Education, University of Canterbury ChristchurchNew Zealand

Larah van der MeerSchool of Educational Psychology, Victoria University of Wellington WellingtonNew Zealand

Martina C. M. SchäferSchool of Health Sciences, College of Education, University of Canterbury ChristchurchNew Zealand

Emma McKenzieSchool of Health Sciences, College of Education, University of Canterbury ChristchurchNew Zealand

Laurie McLaySchool of Health Sciences, College of Education, University of Canterbury ChristchurchNew Zealand

Mark F. O’ReillyMeadows Center for Preventing Educational Risk, The University of Texas at Austin Austin, TXUSA

Giulio E. LancioniDepartment of Neuroscience and Sense Organs, University of Bari BariItaly

Peter B. MarschikInstitute of Physiology, iDN-Interdisciplinary Developmental Neuroscience, Medical University of Graz GrazAustria

Jeff SigafoosSchool of Educational Psychology, Victoria University of Wellington WellingtonNew Zealand

Dean SutherlandSchool of Health Sciences, College of Education, University of Canterbury ChristchurchNew ZealandCorrespondence[email protected]

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