“…The collection and assessment of such data is possible because smartphones are widely available and come with the computational power and sensors needed to obtain information about their owners' daily lives. Researchers in the fields of social science (e.g., Raento et al, 2009), psychology (e.g., Miller, 2012; Harari et al, 2016), and neuroscience (e.g., Schlee et al, 2016; Ladouce et al, 2017) use smartphones to collect data about personality processes and dynamics (Allemand and Mehl, 2017; Beierle et al, 2018a; Stieger et al, 2018; Zimmermann et al, 2018), daily cognitive behaviors (Aschwanden et al, 2018), social support behaviors (Scholz et al, 2016), momentary thoughts (Demiray et al, 2017), couple interactions (Horn et al, 2018), physical activity (Gruenenfelder-Steiger et al, 2017), and moods and emotions (Erbas et al, 2018).…”