Validation of AlertMeter® Mobile Phone Fatigue Assessment Device

Abstract

The current study examined a new mobile app for the measurement of fatigue and alertness in the workplace, the AlertMeter®. Seventeen participants experienced 36-h sleep deprivation and were measured every two hours. Sixteen of the 17 participants were able to stay awake the entire study. No adverse events were observed or reported. The AlertMeter® demonstrated strong validity as a measure of fatigue. It demonstrated significant concurrent validity with the psychomotor vigilance test (PVT) and self-ratings of fatigue (KSS). The AlertMeter® memory tests demonstrated inconsistent correlations with other measures of working memory. Overall, the AlertMeter® is an effective and valid tool for detecting fatigue.