Examining the impact of familiarity on faucet usability for older adults with dementia

BMC Geriatrics

Alex Mihailidis¹  Tammy Craig¹  Jennifer Boger¹ 

[1] University of Toronto, Toronto, ON, Canada

关键词: Product design;    Human factors;    ADL completion;    Enabling independence;    Dementia;    Older adults;    Product usability;    Familiarity;   

Others  :  857602
DOI  :  10.1186/1471-2318-13-63

 received in 2012-07-24, accepted in 2013-06-12,  发布年份 2013

【 摘 要 】

Background

Changes in cognition caused by dementia can significantly alter how a person perceives familiarity, impacting the recognition and usability of everyday products. A person who is unable to use products cannot autonomously complete associated activities, resulting in increased dependence on a caregiver and potential move to assisted living facilities. The research presented in this paper hypothesised that products that are more familiar will result in better usability for older adults with dementia. Better product usability could, in turn, potentially support independence and autonomy.

Methods

This research investigated the impact of familiarity on the use of five faucet designs during 1309 handwashing trials by 27 older adults, who ranged from cognitively intact to the advanced (severe) stages of dementia. Human factors methods were used to collect empirical and self-reported data to gauge faucets’ usability. Participants’ data were grouped according to cognition (i.e., no/mild, moderate, or severe dementia). Logistic regression, ranking by odds, and Wald tests of odds ratios were used to compare performance of the three groups on the different faucets. Qualitative data were used in the interpretation of quantitative results.

Results

Results indicated that more familiar faucets correlated with lower levels of assistance from a caregiver, fewer operational errors, and greater levels of operator satisfaction. Aspects such as the ability to control water temperature and flow as well as pleasing aesthetics appeared to positively impact participants’ acceptance of a faucet. The dual lever design achieved the best overall usability.

Conclusions

While work must be done to expand these findings to other products and tasks, this research provides evidence that familiarity plays a substantial role in product usability for older adults that appears to become more influential as dementia progresses. The methods used in this research could be adapted to analyse usability for other products by older adults with dementia.

【 授权许可】

   
2013 Boger et al.; licensee BioMed Central Ltd.

【 图 表 】

【 参考文献 】

• [1]Population Division of the Department of Economic and Social Affairs of the United Nations Secretariat:  World Population Prospects: The 2008 Revision. 2008.
• [2]Palacios R: The future of global ageing. Int J Epidemiol 2002, 31(4):786-791.
• [3]Ferri CP, Prince M, Brayne C, Brodaty H, Fratiglioni L, Ganguli M, Hall K, Hasegawa K, Hendrie H, Huang Y, et al.: Global prevalence of dementia: a delphi consensus study. Lancet 2005, 366(9503):2112-2117.
• [4]Wimo A, Winblad B, Aguero-Torres H, von Strauss E: The magnitude of dementia occurrence in the world. Alzheimer Dis Assoc Disord 2003, 17(2):63-67.
• [5]Randers I: Autonomy and integrity: upholding older adult patients’ dignity. J Adv Nurs 2004, 45(1):63-17.
• [6]Cotrell V, Schulz R: The perspective of the patient with Alzheimer's disease: a neglected dimension of dementia research. Gerontologist 1993, 33(2):205-211.
• [7]Desai AK, Grossberg GT, Sheth DN: Activities of daily living in patients with dementia: clinical relevance, methods of assessment and effects of treatment. CNS Drugs 2004, 18(13):853-875.
• [8]Dubois M-F, Dubuc N, Caron CD, Raîche M, Hébert R: Is there agreement between Canadian older adults and their primary informal caregivers on behaviour towards institutionalisation? Health Soc Care Community 2009, 17(6):610-618.
• [9]Murray LM, Boyd S: Protecting personhood and achieving quality of life for older adults with dementia in the U.S. Health care system. J Aging Health 2009, 21(2):350-373.
• [10]Alzheimer’s Disease International: World Alzheimer Report 2010. In The Global Economic Impact of Dementia. Edited by Wimo A, Prince M. London, UK: Alzheimer’s Disease International; 2010.
• [11]Carrière Y, Keefe J, Légaré J, Lin X, Rowe G: Population aging and immediate family composition: implications for future home care services. Genus 2007, 63(1–2):11-31.
• [12]Tilly J, Reed P: Evidence on Interventions to Improve Quality of Care for Residents with Dementia in Nursing and Assisted Living Facilities. In. Alzheimer's Association: Chicago, IL; 2004.
• [13]Kaplan S, Kaplan R: Cognition and environment: Functioning in an uncertain world. Ann Arbor, MI: Ulrich's; 1989.
• [14]Norman DA: The Design of Everyday Things. New York, NY: Basic Books; 2002.
• [15]Knight RG: Controlled and automatic memory process in Alzheimer's disease. Cortex 1998, 34(3):427-435.
• [16]Smith J, Knight RG: Memory processing in Alzheimer’s disease. Neuropsychologia 2002, 40(6):666-682.
• [17]Son GR, Therrien B, Whall A: Implicit memory and familiarity among elders with dementia. J Nurs Scholarsh 2002, 34(3):263-267.
• [18]van Hoof J, Kort H: Supportive living environments. Dementia 2009, 8(2):293-316.
• [19]Calkins MP: Evidence-based long term care design. NeuroRehabilitation 2009, 25(3):145-154.
• [20]Calkins M, Sanford J, Proffitt M: Design for Dementia. In Challenges and Lessons for Universal Design. In: Universal Design Handbook. 22nd edition. Edited by Preiser WFE, Ostroff E. New York, NY: McGraw-Hill Inc; 2001:21-22. 24
• [21]Hodges L, Bridge C, Chaudhary K: Dementia Design Guidelines: Home and Community Care Capital Works Program (2nd Edition). Sydney: Home Modification Information Clearinghouse: University of Sydney; 2007.
• [22]Fleming R, Forbes I, Bennett K: Adapting the ward for people with dementia. Sydney, Australia: The Hammond Group, New Sout Wales Department of Health; 2003.
• [23]Day K, Carreon D, Stump C: The therapeutic design of environments for people with dementia: a review of the empirical research. Gerontologist 2000, 40(4):397-416.
• [24]Orpwood R, Gibbs C, Adlam T, Faulkner R, Meegahawatte D: The design of smart homes for people with dementia – user-interface aspects. Universal Access in the Information Society 2005, 4(2):156-164.
• [25]Cahill S, Macijauskiene J, Nygård A-M, Faulkner J-P, Hagen I: Technology in dementia care. Technol Disabil 2007, 19:55-60.
• [26]Bharucha AJ, Anand V, Forlizzi J, Dew MA, Reynolds CF III, Stevens S, Wactlar H: Intelligent assistive technology applications to dementia care: current capabilities, limitations, and future challenges. Am J Geriatr Psychiatry 2009, 17(2):88-104.
• [27]Topo P, Ostlund B (Eds): Dementia, Design and Technology: Time to Get Involved. Amsterdam, Netherlands: IOS Press; 2009.
• [28]Stewart A: Thinking about DEMENTIA Think about TAPS. In Edited by Centre DSD. Sterling, Scotland: Dementia Services Development Centre, University of Sterling; 1999.
• [29]Andrews J, Cunningham C: 10 Helpful Hints for Dementia Design at Home: Practical Design Solutions for Carers Living at Home with a Person Who Has Dementia. University of Stirling: Dementia Services Development Centre; 2010.
• [30]Mihailidis A, Fernie G, Cleghorn WL: The development of a computerized cueing device to help people with dementia to be more independent. Technol Disabil 2000, 13(1):23-40.
• [31]Hoey J, Poupart P, von Bertoldi A, Craig T, Boutilier C, Mihailidis A: Automated handwashing assistance for persons with dementia using video and a partially observable markov decision process. Comput Vis Image Underst 2010, 114(5):503-519.
• [32]Mihailidis A, Boger J, Craig T, Hoey J: The COACH prompting system to assist older adults with dementia through handwashing: an efficacy study. BMC Geriatr 2008., 8(28)
• [33]Boger J, Hoey J, Poupart P, Boutilier C, Fernie G, Mihailidis A: A planning system based on Markov decision processes to guide people with dementia through activities of daily living. IEEE Trans Inf Technol Biomed 2006, 10(2):323-333.
• [34]Nielsen J: Usability Engineering. Boston, MA: Academic Press; 1994.
• [35]Babbar S, Behara R, White E: Mapping product usability. Int J Oper Prod Man 2002, 22(10):1071-1089.
• [36]International Organization for Standardization: ISO 9241-11: Ergonomic requirements for office work with visual display terminals (VDTs) -- Part 11: Guidance on usability. International Organization for Standardization; 1994.
• [37]Frekjmr E, Hertzum M, Hornbmk K: Measuring Usability: Are Effectiveness, Efficiency, and Satisfaction Really Correlated? In SIGCHI conference on Human Factors in Computing Systems. vol. 2. The Netherlands: The Hague; 2000:345-352.
• [38]Fisher SE, Burgio LD, Thorn BE, Hardin JM: Obtaining self-report data from cognitively impaired elders: methodological issues and clinical implications for nursing home pain assessment. Gerontologist 2006, 46(1):81-88.
• [39]James BD, Xie SX, Karlawish JHT: How do patients with Alzheimer disease rate their overall quality of life? Am J Geriatr Psychiatry 2005, 13(6):484-490.
• [40]Cahill S, Begley E, Topo P, Saarikalle K, Macijauskiene J, Budraitiene A, Hagen I, Holthe T, Jones K: ‘I know where this is going and I know it won’t Go Back’ hearing the Individual’s voice in dementia quality of life assessments. Dementia 2004, 3(3):313-330.
• [41]Brod M, Stewart AL, Sands L, Walton P: Conceptualization and measurement of quality of life in dementia: the dementia quality of life instrument (DQoL). Gerontologist 1999, 39(1):25-35.
• [42]Tullis T, Albert W: Measuring the User Experience: Collecting, Analyzing, and Presenting Usability Metrics. Amsterdam, The Netherlands: Elsevier/Morgan Kaufmann; 2008.
• [43]Agostinelli B, Demers K, Garrigan D, Waszynski C: Targeted interventions - Use of the MMSE. J Gerontol Nurs 1994, 20(8):15-23.
• [44]Mungas D: In-office mental status testing: a practical guide. Geriatrics 1991, 46(7):54-58. 63, 66
• [45]Landis JR, Koch GG: The measurement of observer agreement for categorical data. Biometrics 1977, 33(1):159-174.
• [46]Taati B, Snoek J, Mihailidis A: Towards Aging-In-Place: Automatic Assessment of Product Usability for Older Adults with Dementia. San Jose, CA: IEEE Conference on Healthcare Informatics, Imaging, and Systems Biology; 2011.
• [47]Taati B, Snoek J, Mihailidis A: Video analysis for identifying human operation difficulties and faucet usability assessment. Neurocomputing 2013, 100(16):163-169.