This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.ĭata Availability: All relevant data are within the paper and its Supporting Information files.įunding: Join Dementia Research was used to identify potential participants for this study. Received: OctoAccepted: MaPublished: April 20, 2020Ĭopyright: © 2020 Fawns-Ritchie, Deary. PLoS ONE 15(4):Įditor: Angel Blanch, University of Lleida, SPAIN
These psychometric results provide currently-lacking information on the validity of the UK Biobank cognitive tests.Ĭitation: Fawns-Ritchie C, Deary IJ (2020) Reliability and validity of the UK Biobank cognitive tests. Despite the brief, non-standard nature of the UK Biobank cognitive tests, some tests showed substantial concurrent validity and test-retest reliability. Four-week test-retest reliability of the UK Biobank tests were moderate-to-high (mean Pearson r = 0.55, range = 0.40 to 0.89, p≤.003). 001) with a measure of general cognitive ability created using the reference tests. The measure of general cognitive ability based on the UK Biobank cognitive tests correlated at r = 0.83 (p <. those tests that are thought to assess the same underlying cognitive ability (mean Pearson r = 0.53, range = 0.22 to 0.83, p≤.005). UK Biobank cognitive tests showed a range of correlations with their respective reference tests, i.e. Four-week test-retest correlations were calculated for UK Biobank tests. Two measures of general cognitive ability were created by entering scores on the UK Biobank cognitive tests, and scores on the reference tests, respectively, into separate principal component analyses and saving scores on the first principal component. Correlations were calculated between UK Biobank tests and reference tests. Fifty-two participants returned 4 weeks later to repeat the UK Biobank tests. A sample of 160 participants (mean age = 62.59, SD = 10.24) was recruited who completed the UK Biobank cognitive assessment and a range of well-validated cognitive tests (‘reference tests’). The present study examined the validity and short-term test-retest reliability of the UK Biobank cognitive tests.
Despite the non-standard nature of these tests and the limited psychometric information, the UK Biobank cognitive data have been used in numerous scientific publications. Psychometric information on the UK Biobank cognitive tests are limited. The cognitive assessment in UK Biobank is brief and bespoke, and is administered without supervision on a touchscreen computer. UK Biobank is a health resource with data from over 500,000 adults.
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