Table 2.

Table reports the t-value and p-value of the 4 attributes which revealed a statistically significant difference between the two groups (truthtellers vs liars), considering a significance level of p < 0.0008. Effect-size Cohen’s d is also reported.

Feature	t-test (t-value and p-value)	Effect-size (Cohen’s d)
Errors	t(21) = −10.57, p < 8e-4	d = 3.34 (large)
Prompted-firstdigit	t(31) = −6.34, p < 8e-4	d = 2.00 (large)
Prompted-firstdigit adjusted GULPEASE	t(30) = −6.48, p < 8e-4	d = 2.05 (large)
Prompted-enter	t(26) = −5.46, p < 8e-4	d = 1.73 (large)