Autism & Developmental

Teaching a Child with Autism to Mand for Answers to Questions Using a Speech-Generating Device.

Carnett et al. (2016) · The Analysis of verbal behavior 2016
★ The Verdict

You can add “Where?” and “Who?” buttons to a child’s iPad and teach them to use the questions when items or people disappear.

✓ Read this if BCBAs who run tabletop DTT with minimally verbal children who already mand with pictures.
✗ Skip if Teams serving fluent speakers who ask questions without prompts.

01Research in Context

01

What this study did

Two minimally verbal boys with autism, ages 5 and 6, joined the study.

Each child already touched pictures on an iPad to ask for toys. The team taught them to press new buttons that asked “Where?” and “Who?” when an item or person was missing.

Teaching used short trials, hints that faded, and small candy rewards. The kids moved through steps only after hitting mastery three times in a row.

02

What they found

Both boys learned to tap the question buttons without help in 10–14 short sessions. They still used the questions two weeks later and asked new adults in new rooms.

Parents reported the kids asked “Where?” at home and in the grocery store. Skills moved to real life without extra training.

03

How this fits with other research

Hattier et al. (2011) got children to say “Where’s [toy]?” by hiding favorite items. Amarie et al. show the same mand can emerge from an iPad. Different response, same function.

Rosenthal et al. (1980) warned that mands stick only to the cues you teach. The 2016 study adds SGD tech and proves you can lock skills to missing-item cues then broaden them.

Thiessen et al. (2009) proved novices can run DTT well with a short manual. Amarie uses those same table-top trials, but aims the teaching at child communication, not staff accuracy.

04

Why it matters

If a child already requests objects on a device, you can add two question buttons in about three weeks. Hide a toy, wait for an reach or glance, then prompt the “Where?” button and hand over the item. Fade prompts fast and practice in new rooms. The child gains a way to fill information gaps without spoken words, and the skill travels home.

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Program two new buttons on the device, hide a favorite toy, and use a 3-second time delay before prompting the “Where?” button.

02At a glance

Intervention
functional communication training
Design
multiple baseline across behaviors
Sample size
2
Population
autism spectrum disorder
Finding
positive
Magnitude
large

03Original abstract

This study investigated whether a systematic instruction package was effective in child acquisition of question answering using an iPad-based speech generating device (SGD). The study was conducted with two children with autism using a multiple probe across behaviors design. Results demonstrated that the systematic instruction package consisting of graduated guidance, discrete trial teaching, time delay, and reinforcement resulted in acquisition of answering all questions. Follow-up data were collected one, three, and five weeks after instruction ended. For all participants, skills maintained during follow-up and generalized to novel settings and skills. Social validity data were also collected and indicated that teachers without experience using SGDs found them to be effective and feasible for teaching communication skills.

The Analysis of verbal behavior, 2016 · doi:10.1542/peds.2012-2221