Memory and availability-biased metacognitive illusions for flags of varying familiarity.

Research on everyday attention suggests that frequent interaction with objects often does not benefit memory or metamemory for them. Across three experiments, participants gave confidence judgments and completed eight-alternative forced-choice tests of the US, Canadian, and Mexican flags. In Experiment 1, environmental availability was correlated with confidence for the US flag, despite similar recognition performance at a saturated time point in the US (July 4th) and a neutral time point (August 6th). In Experiment 2, participants that were asked to verbally describe the flags before judging and remembering them were less accurate and more overconfident than were controls. Experiment 3 utilized a draw-study paradigm wherein participants who first drew the flag had reliably more accurate recognition and confidence scores than those who only studied it. These findings illuminate a persistent metacognitive bias, demonstrate a powerful learning intervention, and extend theories of errorful learning by highlighting the role of attention.