Figure 3

Distribution of practice effects: Changes from one testing to the next. All cognitive domains (respective single tests grouped as described in Figure 2) show most pronounced improvement in performance from baseline to the 2^nd testing time-point. At late testing time-points with long intertest intervals (5^th to 6^th, and 6^th to 7^th testing), test scores show a slight tendency to decrease. Mean of % change given. Lines indicate logarithmic trends.