Percentage of hindsight bias index.
The hindsight bias index (%) was defined as 100 (initial responses-recollection values) / (initial responses—correct information), in which initial responses = numerical value of the initial responses, recollection values = numerical value of the recollection values, and correct information = numerical value of the correct information. “Total,” “Toward” and “Reversed” in the figure indicates the total percentage of distortions, percentage of distorted items for correct information, and the percentage of distorted items against correct information, respectively.