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Descriptive statistics for discrepancies (in milliseconds) between Usage Logger (past usage) and Psych Validator [Usage Logger timestamp-Psych Validator timestamp]
| Device | Nokia | Huawei | Pixel | ||||
|---|---|---|---|---|---|---|---|
| Event | n | M | SD | M | SD | M | SD |
| Screen off | 10 | 1666.4 | 1662.8 | – 1026.4 | 28.7 | – 2535.1 | 2145.2 |
| Screen on | 10 | – 313.9 | 1066.8 | – 617.2 | 46.3 | 1217.9 | 1118.2 |
| App opened | 20 | 316 | 148.9 | 57.4 | 18 | – 470.6 | 1101.3 |
M = mean, SD = standard deviation
