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.

From: Covert lie detection using keyboard dynamics

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)

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