Design and delivery of a national pilot survey of capabilities
by Raji Tenneti; Joy Goodman-Deane; Patrick Langdon; Sam Waller; Kai Ruggeri; P. John Clarkson; Felicia A. Huppert
International Journal of Human Factors and Ergonomics (IJHFE), Vol. 2, No. 4, 2013

Abstract: Understanding the numbers of people with different levels of ability in the population is important for informing design decisions for mainstream products, but a survey dataset for this purpose does not exist. This paper describes a key step towards obtaining such data. It describes a pilot survey of 362 people across England and Wales in preparation for a full national survey. Information was gathered on vision, hearing, hand and arm function, mobility, cognitive function, product use, psychological characteristics, anthropometrics and demographics. An interesting finding is that of those participants who reported any limitations in daily activities due to capability loss, 44% reported limitations due to loss of more than one capability. This finding highlights the importance of measuring multiple capabilities in a single survey. Top-level lessons learnt include: simplifying vision tests; reducing exclusion criteria for some of the tests; adopting a stratified sampling approach; and allocating more training for interviewers.

Online publication date: Wed, 30-Apr-2014

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