Table 3.
A subset of the data items collected from the participant’s smartphone for the study conducted
| Data Collected | Probe Used | Listening/polling | Intervals |
|---|---|---|---|
| Acceleration | Accelerometer | Listening | 1 reading / second |
| Application Usage | ApplicationUsageStats | Polling | 1 reading / 15 min |
| Statistics | |||
| Brightness | LightDatum | Listening | 1 reading / second |
| Bluetooth encounters | BluetoothDeviceProximityDatum | Polling | scans and reads performed for 10 seconds each, between 30-second intervals |
| Gyroscope values | GyroscopeDatum | Listening | 1 reading / second |
| GPS/ location | LocationDatum | Polling | 1 reading / 15 min |
| Screen unlocks | ScreenDatum | Polling | 1 reading / 30 seconds |