Fig. 3From: Elementary math in elementary school: the effect of interference on learning the multiplication tableAccuracy in the short tests conducted at the beginning and end of each training session. The overall performance improves from day to day. Critically, a similarity effect was observed only in the pre-session test of the last training day—the test that was most sensitive to long-term memory representations. In all other pre- and post-session tests, the similarity effect was not significantBack to article page