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. 2011 Dec 14;6(12):e28800. doi: 10.1371/journal.pone.0028800

Table 1. Descriptive statistics for demographic variables and task performance.

N M SD Observed Range Skewness
Min Max Statistic SE
Age (years) 137 21.92 4.06 18 36 1.612 .207
Nonverbal IQ 63 122.46 11.82 94 152 −.122 .302
SIAS 137 22.61 12.69 1 60 .877 .207
STAI-T 78 40.74 10.92 23 70 .584 .272
CFMT-total 137 56.12 9.05 31 72 −.364 .207
CFMT-novel 137 22.75 4.88 11 30 −.402 .207
CCMT 70 52.69 9.12 24 70 −.447 .287

Note: Scale ranges are: SIAS = 0 (least anxious) to 80; STAI-T = 20 (least anxious) to 80; CFMT-total and CCMT = 24 (chance) to 72 (100% correct); CFMT-novel = 10 (chance) to 30 (100% correct).