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. 2021 Feb 20;60(6):3325–3342. doi: 10.1007/s00394-021-02506-2

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© The Author(s) 2021

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Fig. 2 — a Number of levels achieved on the PAL task according to intervention pooled across test sessions one and two. Figure shows percentage of participants reaching each level when baseline performance reached level 2 only. b Scatterplot of baseline performance against post-intervention PAL task total number of errors (adjusted) pooled across test sessions one and two by intervention