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. 2017 Dec 29:10:182-187.
doi: 10.1016/j.dadm.2017.12.003. eCollection 2018.

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

Craig G J Newman  1 , Adam D Bevins  2 , John P Zajicek  3 , John R Hodges  4 , Emil Vuillermoz  5 , Jennifer M Dickenson  2 , Denise S Kelly  2 , Simona Brown  6 , Rupert F Noad  7
Affiliations

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

Craig G J Newman et al. Alzheimers Dement (Amst). .

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.

Keywords: Administrator error; Alzheimer's; App; Cognitive assessment; Computerized; Dementia; Screening assessment; Usability; Validity.

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Figures

Fig. 1
Fig. 1
Histogram showing the frequency of total errors in 87 ACE-IIIs from NHS Older People's Mental Health teams. Abbreviations: ACE-III, Addenbrooke's Cognitive Examination-III; NHS, National Health Service.
See this image and copyright information in PMC

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