Communication modality sampling for a toddler with Angelman syndrome

Jolene Hyppa Martin, Joe E Reichle, Adele F Dimian, Mo Chen

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


Purpose: Vocal, gestural, and graphic communication modes were implemented concurrently with a toddler with Angelman syndrome to identify themost efficiently learned communication mode to emphasize in an initial augmentative communication system. Method: Symbols representing preferred objects were introduced in vocal, gestural, and graphic communicationmodes using an alternating treatment single-subject experimental design. Conventionally accepted prompting strategies were used to teach symbols in each communication mode. Because the learner did not vocally imitate, vocal mode intervention focused on increasing vocal frequency as an initial step. Results: When graphic and gestural mode performances were compared, the learner most accurately produced requests in graphic mode (percentage of nonoverlapping data = 96). Given the lack of success in prompting vocal productions, a comparison between vocal and the other two communication modes was not made. Conclusion: A growing body of evidence suggests that concurrent modality sampling is a promising low-inference, data-driven procedure that can be used to inform selection of a communication mode(s) for initial emphasis with young children. Concurrent modality sampling can guide clinical decisions regarding the allocation of treatment resources to promote success in building an initial communicative repertoire.

Original languageEnglish (US)
Pages (from-to)327-336
Number of pages10
JournalLanguage, Speech, and Hearing Services in Schools
Issue number4
StatePublished - Oct 1 2013


  • Angelman syndrome
  • Augmentative and alternative communication (AAC)
  • Communication modes
  • Modality sampling


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