The spatial accuracy of geographic ecological momentary assessment (GEMA): Error and bias due to subject and environmental characteristics

• Published in: Drug and alcohol dependence Vol. 178; pp. 188 - 193
• Main Authors: Mennis, Jeremy, Mason, Michael, Ambrus, Andreea, Way, Thomas, Henry, Kevin
• Format: Journal Article
• Language: English
• Published: Ireland Elsevier B.V 01.09.2017; Elsevier Science Ltd
• Subjects: Accuracy; Adolescent; Bias; Data quality; Demographics; Demography; Ecological momentary assessment; Ecological Momentary Assessment - standards; Ecological monitoring; Ecology; Electromagnetic interference; EMA; Emotional regulation; Environment; Environmental aspects; Evaluation; Female; Geographic information systems; Geographic Information Systems - standards; Global positioning systems; GPS; Humans; Information systems; Location; Male; Neighborhood; Neighborhoods; Positioning; Privacy; Remote sensing; Residence Characteristics; Satellite navigation systems; Substance abuse; Substance use; Substance-Related Disorders - diagnosis; Substance-Related Disorders - epidemiology; Substance-Related Disorders - psychology; Systems analysis; Urban areas; Urban environments; Urban studies; Ecological momentary assessment; Accuracy; EMA; Environment; Ecology; Data quality; Location; Neighborhood

•Geographic ecological momentary assessment (GEMA) data contain spatial error due to subject and environment characteristics.•The median subject-level GEMA accuracy to within a half mile was 88%.•GEMA accuracy was not associated with subject or environmental characteristics.•Understanding spatial ac...