“…Cho et al (2011), for example, followed participants for approximately 2 years and deduced the spatial location of the participants on the basis of the nearest cell phone tower each time the participant generated or received a call, and also from the recorded geolocations each time a participant generated a "check-in" from their mobile phone on two social network websites (i.e., Gowalla and Brightkite). Intervals may also be regularly spaced, rather than "per-incident" (e.g., cell phone calls), and the timing of intervals between spatial assessments range broadly; for example, spatial assessments have been assessed at 5-min (Eagle et al, 2009), 15-min (Silm, Ahas, & Nuga, 2013), and 30-min (Benkert, Gudmundsson, Hübner, & Wolle, 2008) intervals.…”