. 2017 May 5;19(5):e121. doi: 10.2196/jmir.7329
©Alain Labrique, Emily Blynn, Saifuddin Ahmed, Dustin Gibson, George Pariyo, Adnan A Hyder. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 05.05.2017.
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Figure 4.
Nonresponse weighting, using a factor, Ri, where f is the nonresponse rate for the i-th group.