I would like to use LAMP in as part of a study of participants’ naturalistic sleep patterns. I am interested in knowing the time stamps for when the screen was on or off, for the purpose of verifying whether the participant was actively using their phone at a certain time of day or night. (Wearable activity and sleep trackers have difficulty discerning lying in bed to sleep versus lying in bed while scrolling social media feeds on the phone, so if we know that a participant was actively using their phone at 3am, we can infer that they were not asleep). Is this possible? My question is not about total screen time per day, but rather, at a specific time of day, was the screen on or off?
I have seen another post, “Recording time spent on other apps,” which is related but does not exactly answer this question.