a randomized-control trial of high- and low-tech ... · used to replace “low-tech” components...

A Randomized-control Trial of High- and Low-tech Treatments for Communication Disorders in AutismShawn P. Gilroy, Geraldine Leader, & Joseph P. McCleeryNational University of Ireland – Galway

Participants•  37 children with autism, ages 5-13 recruited

from schools in western Ireland.

DesignChildren were randomized to one of two groups at the classroom-level.

•  Low-tech Approach (n=19; ages 5-12): These children were taught to communication using picture cards, consistent with the picture exchange communication system.

High-tech Approach (n=18; ages 5-13): These children received a seven-inch tablet with an application programmed specifically to output speech in the English language.

Method

Background•  Tablets and mobile applications are increasingly

used to replace “low-tech” components of evidence-based practices.

•  While more economical, research on the use of “high-tech” devices is still emerging.

•  Additional research is needed to determine which type of approach is most effective for children and adults with disabilities.

Research questions:1.  Are tablet-based interventions as effective as

established, low-tech complements?2.  Which approach offers the greatest effect and

overall rate of improvement?3.  Which approach is more preferable to teachers

and parents?4.  Is one approach less socially-stigmatizing to

children than the other approach?

Background & Research Questions

Intervention GroupsPicture Exchange Communication System•  Children hand a

specific card to others to communicate

•  Children carry a small book

Speech-Generating Device•  Children use a tablet

to design a message and say it out loud

•  Children carry a small tablet with pictures

Results

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Pre-Treatment Post-Treatment

Perc

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Treatment Outcomes

PECS SGD

Conclusions•  Both high- and low-tech approaches improve more

basic forms of social communication (e.g., making requests, answering questions related to requests).

•  Improvements were observed across the full age range for both groups.

•  High levels of independence were observed in both treatment modalities

PECS = Picture Exchange Communication System (Picture Cards) SGD = Speech Generating Device (Tablet)

Next Steps•  Additional research needs to evaluate high- and

low-tech approaches for more advanced forms of social behavior (e.g., social conversations).

•  Future research needs to evaluation how high- and low-tech approaches may differ when used in more natural contexts (e.g., peer interaction, physical play).

•  Research needs to explore communication between peers who themselves may be using different communication approaches.

AcknowledgmentsThis research was supported by funding from the charity RESPECT and the People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme (FP7/2007-2013) under REA grant agreement no. PCOFUND-GA-2013-608728