Figure 3. Discordant Proband and Cotwin Neuropsychological Performance Relative to Control Group.
Group scores are in z-score units and plotted relative to control group means and standard deviations. DSS=Digit Symbol Substitution; LNS=Letter Number Sequencing; BD=Block Design; VPA-I=Verbal Paired Associates Initial Recall; VPA-D=Verbal Paired Associates Delayed Recall; VO=Vocabulary.