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. 2015 Jun 12;6:35. doi: 10.1186/s13229-015-0031-2

Table 2.

Logistic regression for experiment 2: factors influencing participants’ decision to choose stimuli on the left

Object vs. direct gaze Object vs. averted gaze Direct vs. averted gaze
(Wald χ2) (Wald χ2) (Wald χ2)
Stimulus 0.022, p = 0.883 2.96, p = 0.086 0.65, p = 0.422
Effort 49.51, p < 0.0001 53.91, p < 0.0001 44.25, p < 0.0001
Group 0.354, p = 0.552 0.700, p = 0.403 0.014, p = 0.906
Stimulus × group 3.10, p = 0.083 0.99, p = 0.320 3.22, p = 0.073
Stimulus × effort 4.05, p = 0.400 0.45, p = 0.978 10.76, p = 0.029
Effort × group 10.65, p = 0.031 8.58, p = 0.073 4.25, p = 0.373
Stimulus × effort × group 11.99, p = 0.017 2.26, p = 0.689 9.43, p = 0.051
Age 1.65, p = 0.199 1.26, p = 0.261 1.45, p = 0.228
Full-scale IQ 0.140, p = 0.709 0.011, p = 0.918 0.212, p = 0.645