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. Author manuscript; available in PMC: 2012 Mar 1.
Published in final edited form as: Psychol Addict Behav. 2011 Mar;25(1):127–142. doi: 10.1037/a0022350

Figure 4.

Figure 4

Verbal attention/working memory (WISC-R/WAIS-R Arithmetic) performance across the 10-year follow-up period. Lines with different letters (a, b) significantly differ from each other at p<.05.

Note. WISC-R/WAIS-R Arithmetic scaled scores have a mean of 10 and a standard deviation of 3.