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. Author manuscript; available in PMC: 2014 Oct 1.
Published in final edited form as: Dev Cogn Neurosci. 2014 Mar 25;9:148–159. doi: 10.1016/j.dcn.2014.03.001

Table 1.

Descriptive Statistics and t-tests

n Min Max M SD t1
Age 4 ERN 25 −43.64 29.56 −6.02 14.27 −0.35
Age 2 Fearfulness 30 0.43 84.71 39.61 23.35 0.03
Age 4 Fearfulness 30 −1.63 2.16 0.17 1.01 0.64
Age 4 Mean Response Time 30 647.05 1184.50 953.75 121.63 −0.43
Age 2 Harsh Parenting 30 −2.24 1.89 0.04 1.05 2.29*
1

t-tests (two-tailed) compared males and females,

*

p<.05