Precision Teaching to Develop Key Word Sign Skills in Practitioners in Intellectual Disability Services: A Proof-of-Concept Study.
Athanasios Vostanis, Oliver Douglas Payne, Anthony Cox and 1 others
PMID 41582097WHAT IT FOUND
Four support workers with no prior sign training used Precision Teaching to learn 60 Key Word Signs.
They achieved high accuracy and fluency in practice and used signs more frequently than five trained controls in real work settings, though usage was inconsistent over time.
Key findings
01Experimental participants increased their correct sign usage in naturalistic work settings significantly more than control participants who had received standard training.
02Three of the four experimental participants achieved fluency, defined as accuracy plus a natural, effortless pace, by the end of the training.
03Experimental participants demonstrated agility, becoming more efficient at learning new sets of signs as the training progressed.
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
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What it does not show
The study had a very small sample size (four experimental participants), limiting generalisability. One participant withdrew due to scheduling conflicts, indicating the training intensity may be difficult to accommodate in busy service settings. Control participants' training was at least one year old, making it unclear if the difference in outcomes was due to the PT method or simply recency of training. Naturalistic sign usage was inconsistent, and performance decelerated during maintenance for three of the four participants. The study took place in a single service, and the signs selected included some redundancies.
Declared interests
The second author was a staff member at the service where the research took place. The study was funded by the British Academy.
The easy way to misread this
Do not assume this training method guarantees long-term retention or consistent use in the workplace without ongoing support. Three of the four participants showed a decline in sign performance during the maintenance phase, and naturalistic usage was not sustained consistently throughout the study weeks.
Summarised by AI from the full paper, without a clinician reviewing it. Check it against the source before it changes what you do. Read it on PubMed →