False Positives vs. False Negatives: The Effects of Recovery Time and Cognitive Costs on Input ...
summary
Two user studies use a controlled tile search task with injected false positives and false negatives and manipulated tile reopening times to measure preference; deployed on Mechanical Turk with 13 blocks per participant (≈40 tiles per block, six errors of each type injected). Results show a consistent bias against false positives — roughly bias equivalent to ~1.5 seconds (up to 2.7s in attentive users) — and implicate added attentional and task‑switching costs; a time‑pressure and split‑attention variant confirm sensitivity to recovery time and cognitive load.
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