Zink J, Belcher BR, Dzubur E, Ke W, O’Connor S, Huh J, Lopez N, Maher JP, Dunton GF
JMIR Mhealth Uhealth 2018;6(6):e150
EMA reports highly relate to accelerometer measures. However, the differences in the strength of association depending on various demographic characteristics suggest that future research should use both EMA and accelerometers to measure activity to collect complementary activity data.