Table 3.

Experiment 2: Exogenous ambiguity levels in the Trust Game

DV	Coefficient (β)	Estimate (SE)	t-value	P-value
Money trusted	Intercept	0.90 (0.11)	8.18	<0.001***
	Ambiguity attitude	−0.04 (0.11)	−0.33	0.74
	Untrustworthy	−0.22 (0.07)	−3.12	0.001**
	Trustworthy	0.36 (0.10)	3.76	<0.001***
	Ambiguity attitude × untrustworthy	0.12 (0.07)	1.79	0.07†
	Ambiguity attitude × trustworthy	0.07 (0.09)	0.68	0.49
	Untrustworthy × ambiguity level	−0.13 (0.09)	−1.32	0.18
	Trustworthy × ambiguity level	0.43 (0.10)	4.13	<0.001***
	Untrustworthy × ambiguity attitude × ambiguity level	0.02 (0.09)	0.21	0.83
	Trustworthy × ambiguity attitude × ambiguity level	0.04 (0.11)	0.36	0.72

Money trusted_i,t = β₀ + β₁ ambiguity attitude_i × β₂ type of trustee_i,t + β₃ ambiguity level_i,t × type of trustee_i,t + β₄ ambiguity attitude_i × ambiguity level_i,t × type of trustee_i,t + ε

Where ambiguity attitude is indexed by subject (i), type of trustee is a categorical variable, and ambiguity level is an indicator variable. Ambiguity attitudes were inverted and standardized before being entered into the regression. Ambiguity level is coded as ambiguous (0) and unambiguous (1) trustees; AIC = 10,275

^†p < 0.1; **p < 0.01; ***p < 0.001