AUTOMATION FAILURES ON TASKS EASILY PERFORMED BY OPERATORS UNDERMINES TRUST IN AUTOMATED AIDS

摘要

Automation users often distrust diagnostic aids that are imperfectly reliable. The extent to which users’ trust in automation is influenced by the simplicity of automation errors was explored. Participants (n = 30) performed 200 trials of a target-detection task using an imperfectly reliable automated aid. For the “easy-miss” group (n = 15) the automated aid missed targets only on easy trials and was accurate on difficult trials. For the “difficult-miss” group (n = 15) the aid missed targets only on difficult trials and was accurate on easy trials. A control group (n = 15) performed the task unaided. The easy-miss group trusted the aid less, was less accurate, and contradicted the aid more than the difficult-miss group, even on trials when the easy-miss aid was more reliable than the difficult-miss aid. Results suggest that the “easiness” of the aid’s errors for the easy-miss group undermined automation trust and reliance. Potential future directions include examining whether easy false alarms affect user trust in a manner akin to easy misses.