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2 August 2022

Comparability and usability of Paired Associates Learning task (PAL) delivered on a smartphone

This poster was presented at the Alzheimer's Association International Conference on Sunday 31st July 2022. Read below for a summary and to view the full poster

Poster Summary

Delivering cognitive tests on a range of modalities, including smartphones, can increase access to memory screening tools for people at risk of memory impairment in Alzheimer’s and dementia. We have developed a prototype version of our Paired Associates Learning (PAL) test that can be delivered on a smartphone. We tested the smartphone version of PAL by recruiting healthy people over the age of 50 to evaluate usability and comparability in individuals within a population at risk of Alzheimer’s and dementia. 50% of the participants completed the task on a desktop first then a smartphone, the other 50% did the task on a smartphone first. The smartphone and desktop versions of PAL were shown to be highly correlated although average performance was better on a desktop. The usability questionnaire indicated that participants preferred using PAL on a desktop as it was easier to use and more enjoyable. Improvements to the smartphone delivered PAL will need to consider box size, layout and positioning and impact on performance variability. 

Full poster

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Elizabeth Baker, Director of Statistical Sciences