Overall Recall and Forgetting of Prices by Strategy Use.

aOverall recall was calculated as an average of prices recalled from immediate post-test to 7-day post-test.bForgetting was calculated as the difference between prices recalled from immediate post-test to 7-day post-test. A negative value would indicate more items were recalled at the 7-day post-test than were recalled at the immediate post-test.a. 总体回忆量以即时后测（immediate post-test）至7天后测（7-day post-test）阶段内被回忆出的价格条目平均值进行计算。 b. 遗忘量以即时后测与7天后测的回忆价格条目差值进行计算。若所得差值为负值，则表明7天后测阶段回忆出的价格条目数量多于即时后测阶段。