Temporal Stability of Repeated Self-Reported vs Device-Measured Behavior: Observational Study Using Ecological Momentary Assessment

Meynard John L Toledo   ¹ , PhD ;   Stefan Schneider   ^{1, 2, 3} , PhD ;   Joshua Smyth   ⁴ , PhD ;   Doerte Junghaenel   ^{1, 2, 3} , PhD ;   Arthur Stone   ^{1, 2} , PhD

¹ Dornsife Center for Self-Report Science & Center for Economic and Social Research, University of Southern California, Los Angeles, CA, United States

² Department of Psychology, University of Southern California, Los Angeles, CA, United States

³ Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, United States

⁴ Department of Psychology, The Ohio State University, Columbus, OH, United States