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Table 2 Means and standard deviations of key variables

From: Early behavioral and physiological markers of social anxiety in infants with fragile X syndrome

Measure

FXS

LRC

t (df) = t, p = p, d = d

Parent-reported social behavioral inhibition

2.78 (1.06)

2.92 (1.01)

t (57) = 0.53, p = .600, d = .14

Social behavioral inhibition composite

− 0.19 (0.66)

0.062 (0.54)

t (63) = 1.82, p = .074, d = .45

Attentional allocation towards stranger

0.49 (.25)

0.40 (.13)

t (62) = − 1.95, p = .056, d = .47

Baseline RSA

4.21 (1.55)

4.53 (0.97)

t (41) = .778, p = .441, d = .23

Stranger RSA

4.17 (1.25)

3.86 (0.81)

t (41) = 1.42, p = .162, d = .40

RSA reactivity

0.04 (1.33)

0.68 (1.04)

t (41) = 1.77, p = .084, d = .54

  1. Note: t = t value, p = p value, d = Cohen’s D