This site uses cookies to measure how you use the website so it can be updated and improved based on your needs and also uses cookies to help remember the notifications you’ve seen, like this one, so that we don’t show them to you again. If you could also tell us a little bit about yourself, this information will help us understand how we can support you better and make this site even easier for you to use and navigate.

The Computerized Self Test (CST): An interactive, internet accessible cognitive screening test for dementia


Dougherty, John H., Jr., Cannon, Rex L., Nicholas, Christopher R., Hall, Lorin, Hare, Felicia, Carr, Erika, Dougherty, Andrew, Janowitz, Jennifer, Arunthamakun, Justin


Journal of Alzheimer's Disease, Volume: 20, No.: 1, Pages.: 185-195

Year of Publication



The computer self test (CST) is an interactive, internet-based instrument designed to assess functional cognitive domains impaired by Alzheimer’s disease (AD) and mild cognitive impairment (MCI). This study consisted of 215 total subjects with a mean age of 75.24. The 84 cognitively impaired patients (excluding patients diagnosed as MCI) met all criteria set forth by NINCDS/ADRDA for the diagnosis of AD. Control participants consisted of 104 age-matched individuals who were cognitively unimpaired. All patients completed the CST prior to other routine neurocognitive procedures. The CST accurately classified 96% of the cognitively impaired individuals as compared to controls, while the Mini-Mental Status Examination (MMSE) accurately classified 71% and the Mini-Cog 69% in the same respect. In addition, the CST accurately classified 91% of the six experimental groups (control, MCI, early AD, mild to moderate, moderate to severe, and severe) as compared to 54% for the MMSE and 48% for the Mini-Cog. In conclusions, the CST demonstrates a high degree of sensitivity and specificity and is capable of accurately identifying cognitive impairment in patients with variable degrees of cognitive abnormality. This interactive internet-based cognitive screening tool may aid in early detection of cognitive impairment in the primary care setting. The ease of use and interpretation may also provide the means to obtain an accurate baseline from which to monitor cognitive changes over time. (PsycINFO Database Record (c) 2014 APA, all rights reserved). (journal abstract)


cognitive, cognitive impairment, cognitive screening test, computer, computerized self test, dementia, for, interactive, internet, screening tests, self, status, test, test reliability, test validity

Countries of Study


Types of Dementia

Alzheimer’s Disease, Mild Cognitive Impairment (MCI)

Types of Study

Non randomised controlled trial

Type of Interventions

Diagnostic Target Identification, Technology (telephone, telecare, telehealth, robots, GPS)

Diagnostic Targets

Cognition testing (inc. task driven tests such as clock drawing)