Improving the quality of cognitive screening assessments: ACEmobile, an iPad‐based version of the Addenbrooke's Cognitive Examination‐III

• Main Authors: Craig G.J. Newman, Adam D. Bevins, John P. Zajicek, John R. Hodges, Emil Vuillermoz, Jennifer M. Dickenson, Denise S. Kelly, Simona Brown, Rupert F. Noad
• Format: Article
• Language: English
• Published: Wiley 2018-01-01
• Series: Alzheimer’s & Dementia: Diagnosis, Assessment & Disease Monitoring
• Subjects: Screening assessment; Cognitive assessment; Alzheimer's; Dementia; Computerized; App
• Online Access: https://doi.org/10.1016/j.dadm.2017.12.003

Abstract Introduction Ensuring reliable administration and reporting of cognitive screening tests are fundamental in establishing good clinical practice and research. This study captured the rate and type of errors in clinical practice, using the Addenbrooke's Cognitive Examination‐III (ACE‐III), and then the reduction in error rate using a computerized alternative, the ACEmobile app. Methods In study 1, we evaluated ACE‐III assessments completed in National Health Service (NHS) clinics (n = 87) for administrator error. In study 2, ACEmobile and ACE‐III were then evaluated for their ability to capture accurate measurement. Results In study 1, 78% of clinically administered ACE‐IIIs were either scored incorrectly or had arithmetical errors. In study 2, error rates seen in the ACE‐III were reduced by 85%–93% using ACEmobile. Discussion Error rates are ubiquitous in routine clinical use of cognitive screening tests and the ACE‐III. ACEmobile provides a framework for supporting reduced administration, scoring, and arithmetical error during cognitive screening.