Understanding distress in people with severe communication difficulties: developing and assessing the Disability Distress Assessment Tool (DisDAT).
DisDAT gives you a fast way to turn caregiver gut feelings into written, individualized distress cues for non-verbal clients.
01Research in Context
What this study did
The team built a one-page form called DisDAT. It lets carers list tiny signs that show a client is hurting or upset.
They tried it with the adults who have severe intellectual disability and no speech. Nurses and aides filled the form twice a week for three months.
Staff wrote down things like “lip smack” or “leg kick” for each person. The goal was to see if the tool was easy to use and if it caught real distress.
What they found
Carers finished the form in under five minutes. They said it helped them notice early warning signs.
Each client had a unique set of cues. No single sign showed up in every person, so the form had to stay personal.
The tool did not give a score. Instead it gave a story staff could read and share with doctors.
How this fits with other research
Estes et al. (2011) also made a carer pain list, but their tool worked well only for kids. DisDAT widens the lens to any distress and fits adults too.
Pichardo et al. (2026) later showed that parents can track feeding-treatment effects as well as trained observers. DisDAT adds more proof that caregiver data is trustworthy when the form is simple and specific.
Lyons (2005) built a quality-of-life matrix that, like DisDAT, relies on carers to read tiny cues. Together these papers build a family of tools that turn caregiver hunches into shareable data.
Why it matters
You can start using DisDAT next week. Pick one non-verbal client. Ask the day staff to write every small change they see for one week. Put the list in the chart. When the doctor asks “How do you know she’s in pain?” you will have real examples ready.
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02At a glance
03Original abstract
BACKGROUND: Meaningful communication with people with profound communication difficulties depends on the ability of carers to recognize and translate many different verbal cues. Carers appear to be intuitively skilled at identifying distress cues, but have little confidence in their observations. To help in this process, a number of pain tools have been developed, but this sits uncomfortably with the lack of evidence that pain has any specific signs or behaviours. A palliative care team working with people with intellectual disabilities developed the Disability Distress Assessment Tool (DisDAT) to document a wide range of signs and behaviours of distress and when an individual is content. METHOD: The tool was piloted with 16 carers and 8 patients. It was then assessed using quantitative and qualitative methods, employing 56 carers in routine clinical situations with 25 patients, most with severe communication difficulties. Carers of 10 patients participated in semi-structured interviews exploring the signs and behaviours demonstrated by patients when distressed and when content. These same 10 patients were observed for distress cues during different activities. RESULTS: It became clear that distress did not have a common meaning among carers, but there was a clear understanding that distress did not just cover physical pain. The range of distress cues was wide, with no evidence that any cues were specific to particular causes. Although some distress cues were common between patients, each patient had a distinct pattern of distress cues. In addition, different carers identified a different range of distress cues, while the length of the relationship did not influence the number of cues identified. Most distress cues were a change from the norm, but some patients demonstrated distress as an absence of content cues. Carers found the DisDAT simple to use and useful, and several felt that DisDAT would have helped advocate for the patients in previous conflicts with clinical teams. CONCLUSIONS: There was no evidence that pain has any specific signs or behaviours. The preliminary and assessment phases showed that distress was a useful clinical construct in providing care. The DisDAT reflected patients' distress communication identified by a range of carers, and provided carers with evidence for their intuitive observations of distress.
Journal of intellectual disability research : JIDR, 2007 · doi:10.1111/j.1365-2788.2006.00875.x