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Geographic Imputation of Missing Activity Space Data from Ecological Momentary Assessment (EMA) GPS Positions
Mason, Michael J. Coffman, Donna L.
Mason, Michael J.
Coffman, Donna L.
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Journal article
Date
2018-12-04
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Geography and Urban Studies
Epidemiology and Biostatistics
Epidemiology and Biostatistics
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https://doi.org/10.3390/ijerph15122740
Abstract
This research presents a pilot study to develop and compare methods of geographic imputation for estimating the location of missing activity space data collected using geographic ecological momentary assessment (GEMA). As a demonstration, we use data from a previously published analysis of the effect of neighborhood disadvantage, captured at the U.S. Census Bureau tract level, on momentary psychological stress among a sample of 137 urban adolescents. We investigate the impact of listwise deletion on model results and test two geographic imputation techniques adapted for activity space data from hot deck and centroid imputation approaches. Our results indicate that listwise deletion can bias estimates of place effects on health, and that these impacts are mitigated by the use of geographic imputation, particularly regarding inflation of the standard errors. These geographic imputation techniques may be extended in future research by incorporating approaches from the non-spatial imputation literature as well as from conventional geographic imputation and spatial interpolation research that focus on non-activity space data.
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Citation
Mennis, J.; Mason, M.; Coffman, D.L.; Henry, K. Geographic Imputation of Missing Activity Space Data from Ecological Momentary Assessment (EMA) GPS Positions. Int. J. Environ. Res. Public Health 2018, 15, 2740.
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International Journal of Environmental Research and Public Health, Vol. 15, Issue 12
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