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Table 1 Standardized measures (mean, SD) of behavior rating inventory of executive functions (BRIEF)

From: DNA methylation and behavioral dysfunction in males with 47,XXY and 49,XXXXY: a pilot study

Test

Mean 47,XXY (SD)

Mean 49,XXXXY (SD)

Significance

Cohen's d

BRIEF Behavioral Regulation Index (T)

52.5 (15.2)

66.6 (13.9)

0.034

0.97

BRIEF Metacognition Index (T)

52.5 (12.6)

62.0 (8.0)

0.049

0.90

BRIEF Global Executive Composite (T)

53.4 (14.0)

64.7 (9.4)

0.037

0.95

  1. T = T-score; SD = standard deviation; mean scores for the 49,XXXXY group were all significantly different from the test value T = 50 (P < 0.01)