PECS giving you trouble? Use Precision Teaching.

My name is Simon Dejardin. I’m a BCBA in France, in the Paris suburbs. I supervise an ABA program for adolescents with ASD.

Last November, I welcomed a 14-year-old girl named Cecilia. She has a rare genetic syndrome called Potocki-Lupski. The syndrome includes physical characteristics such as exotropia, low muscle tone, scoliosis, and many others that can cause health complication. The syndrome is also associated with a slew of behavioral symptoms such as repetitive or stereotypical behaviors, wandering, speech delays, physical aggression, and self-mutilation.

When I met Cecilia, I had to make decisions about her curriculum and IEP goals. I decided to work primarily on verbal behavior. Why? First, she was 14 and had very few functional communication skills. Second, a functional assessment indicated her aggressive behaviors were maintained by positive reinforcement (edibles and tangibles) and negative reinforcement (aversive situations).

When she came to us, Cecilia used PECS. But when my staff tried to communicate with her we quickly saw that she exchanged only three pictures, and engaged in frequent response scrolling, and she almost never looked at the pictures! So we decided to try something different.

Chartlytics PECS

My next thought was to try to teach her to sign.  We picked three items that she liked: cookies, music, candies. Again, we quickly found ourselves at a dead end – her motor skills and visual tracking of items were too poor.

So we were back to picture exchange, except this time we used large, authentic photographs. Again, we faced the motor and visual tracking issues. I thought to resolve the problem by building Cecilia’s fluency with the Big 6: reach, point, touch, grasp, place, and release. If she could perform the 6 motor movements fluently, all the prerequisites would be present to teach her to exchange pictures with someone else.

  • Free-reach: We placed items on a table and measured the frequency of the free-reach preferred items, moving them as soon as she reached them. She didn’t reach the performance standard (or frequency goal) for this movement cycle (MC) but improved her performance by x2 in three weeks.
  • Free-point: We implemented forced choice with two items, a preferred one and a neutral item (a sock). We asked her, “What do you want?” and prompted her to point at the preferred item as soon as she started to reach it.
  • Free-touch: We worked on the MC by using a clicker. Shaping with a clicker is particularly helpful with frequency building because an auditory “click” is immediate, unintrusive, and when paired with a primary reinforcer, very powerful to teach new skills. We presented a target and clicked each time she touched it.
  • Free-grasp/free-place/free-release: I chose to work on the 3 MCs at the same time by teaching Cecilia to grasp a coin from a box, place it above a money box, and release the coin into the money box. We used a clicker to reinforce every successful attempt.

I attribute the success of this first phase of treatment to the combination of Precision Teaching and shaping with a clicker (also known as clicker training). I think this is one of the most powerful combinations of tools we can find in behavior analytic treatments (the second, in my opinion, is the combination between Precision Teaching and Direct Instruction).

Using Chartlytics was a great bonus compared to traditional graphing. Specifically, interns who didn’t know about Precision Teaching before the intervention were able to make decisions regarding Cecilia’s performance on daily basis.

Chartlytics Fig 1

Figure 1. A Standard Celeration Chart generated by Chartlytics.

Chartlytics Fig 2

Figure 2. A second Standard Celeration Chart generated by Chartlytics.

Now we were ready!

With the Big 6 in her repertoire, Cecilia was prepared to reach toward a picture, touch it, grasp it, place it over an adult’s hand and release it.

After the intervention, motor skills and visual tracking were no longer a problem, so we could move toward a more traditional mand training. Each time Cecilia reached an item, we redirected her to the correct picture with a physical prompt. After some time, we successfully faded use of the physical prompt as well as the clicker.

Presently, Cecilia is able to exchange almost twenty small-sized pictures to ask for edibles, tangibles, and removal of aversive stimulations.

The fine motor movement cycles Cecilia developed through practicing the Big 6 appear to have generalized to other situations, giving her access to new activities. Now she can participate with her peers in daily activities such as bringing in the mail and placing cutlery in the dishwasher after a meal. We have seen dramatic improvements in her daily living skills, particularly in dressing: buttoning, zipping, and fastening Velcro.

We would not have achieved these outcomes so quickly without frequency building and use of the Standard Celeration Chart.  Chartlytics made it particularly easy on my staff. After setting up all the inputs, they could use the application for data recording and decision making without supervision or additional training.  My administrators quickly understood the importance of the Chartlytics application and allowed me to sign up the organization for an account.  I thank them for that.

Finally, I thank Cecilia for becoming my Big 6 Hero.

Interested in learning how to apply these measurement techniques in your practice?

Chartlytics Fig 3

At the Precision Teaching University (PTU) you’ll find dozens of online courses geared towards using precision measurement to affect dramatic transformations in behavior.

Chartlytics and the PTU is a ACE certified provider and all of our courses come with Type 2 CEUs.

Click here to learn more about to get a free course with CEUs and an ebook from Precision Teaching University.

*Paid Content from Chartlytics.

6 Comments on "PECS giving you trouble? Use Precision Teaching."

  1. Hello Simon,

    This is a rare and outstanding article describing the use of scientifically-based, research-validated methods to build a successful learning experience for a client with significant health and developmental challenges.

    Thank you for the detailed discussion of how you used Precision Teaching to teach the Big 6 fine motor skills, and for describing how these skills dramatically expanded your client’s ability to participate in the daily activities of life. Wonderful!

    Thank you too for explaining how you “combined” highly successful methods, such as the Precision Teaching plus Clicker Training (or TAGteach) combination, and the Precision Teaching plus Direct Instruction combination. Each of these is a powerful method in its own right; when combined they deliver even more instructional power to the teacher, along with dramatically better opportunities for the child to learn and grow.

    Everyone should read this article. Congratulations to you and your team, and best wishes for the future.

  2. Amazing! Thank you for sharing!

  3. Antoine Tanet | July 25, 2016 at 10:45 am | Reply

    Excellent Simon.

  4. Michelle Tucker | August 6, 2016 at 3:17 pm | Reply

    My husband has an amazing job opportunity in Paris and my family would love to relocate from the USA to Paris. The position comes with a substantial tuition subsidy for our children. I have 12 year old twins on the ASD spectrum that currently receive a combination of mainstream classes and daily individual pull-out. They have few behavioral issues, are fully verbal but struggle to keep on grade level for language arts and math. They are currently in 6th grade. Do you know of any English language schools in Paris or outlying areas that would have services for them. Your input would be greatly appreciated. Thank you.

  5. Sherry Forzley, Ma, BCBA | May 9, 2017 at 9:25 am | Reply

    Love this!! PT can be incorporated in a wide variety of skill sets. Kudos to you for thinking creatively.

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