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. Author manuscript; available in PMC: 2021 Oct 6.
Published in final edited form as: Neuropsychol Rehabil. 2019 Mar 29;30(9):1666–1681. doi: 10.1080/09602011.2019.1598876

Table 3.

Mean Cognitive Scores of Patients and Siblings (N = 30 pairs).

Test / Index Domain Patients Siblings

Mean (SD) Mean (SD) t p

Performance IQ Visual-spatial skills 103.4 (14.4) 102.2 (12.6) .60 .55
Processing Speed Index Processing Speed 91.0 (11.3) 100.6 (12.3) −3.5 .002
Digit Span Backward Working memory 10.9 (3.6) 10.7 (3.1) .30 .77
DKEFS Trails Switching Executive functioning 8.7 (3.2) 9.1 (3.2) −.46 .65

DKEFS = Delis Kaplan Executive Function System.