@article {938761,
	title = {Cognitive Function in Low-Income and Low-Literacy Settings: Validation of the Tablet-Based Oxford Cognitive Screen in the Health and Aging in Africa: A Longitudinal Study of an INDEPTH Community in South Africa (HAALSI)},
	journal = {The Journals of Gerontology Series B: Psychological Sciences and Social Sciences},
	year = {2016},
	month = {October 21, 2016},
	abstract = {Objectives: 1. Assess validity of the Oxford Cognitive Screen (OCS-Plus), a domain-specific cognitive assessment designed for low-literacy settings, especially in low- and middle-income countries (LMIC); 2. Advance theoretical contributions in cognitive neuroscience in domain-specific cognitive function and cognitive reserve, especially related to dementia.Method: In a cross-sectional study of a sample of 1,402 men and women aged 40{\textendash}79 in the Health and Aging in Africa: A Longitudinal Study of an INDEPTH Community in South Africa (HAALSI), we administered OCS-Plus along with health and sociodemographic assessments. HAALSI is a representative sample of older adults in Agincourt, South Africa contributing to normative understanding of cognition in LMIC. We report measure distributions, construct and external validity of the OCS-Plus.Results: OCS-Plus has excellent construct and external validity. Intra-class correlations between similar basic measures of orientation in OCS-Plus and in HAALSI assessments was 0.79, and groups of people performing well on the OCS-Plus verbal memory also showed superior performance on HAALSI verbal memory. The OCS-Plus scores showed consistent associations with age and education and domain-specific associations with alcohol and depression. Younger respondents and the more educated did better on all assessments.Discussion: The OCS-Plus represents a major methodological advance in dementia studies in LMICs, and enhances understanding of cognitive aging.},
	doi = {10.1093/geronb/gbw139},
	url = {http://psychsocgerontology.oxfordjournals.org/content/early/2016/10/21/geronb.gbw139.abstract},
	author = {Humphreys, Glyn W. and Duta, Mihaela D. and Montana, Livia and Demeyere, Nele and McCrory, Cathal and Rohr, Julia and Kahn, Kathleen and Tollman, Stephen and Berkman, Lisa}
}
