Table 3.

Multilevel regression of duration on time, thinking period and condition assignment.

Model	Level 1 parameter	Level 2 parameter	Estimate	S.E.	t
Saturated model	1st min (β0)	Intercept	4.101**	1.558	2.632
		Period	−0.563	1.729	−0.326
		Condition	−1.362	1.880	−0.724
		Period × condition	0.556	2.427	0.229
	Slope (β1)	Intercept	4.459*	2.091	2.133
		Period	−4.631	2.750	−1.684
		Condition	−3.209	2.894	−1.109
		Period × condition	6.890	3.889	1.772
	Curvature (β2)	Intercept	−0.865	0.640	−1.351
		Period	0.912	0.878	1.038
		Condition	0.564	0.896	0.629
		Period × condition	−1.401	1.242	−1.128
	Control (βc)	Intercept	−0.029	0.227	−0.128
Post-Hoc model	1st min (β0)	Intercept	5.257**	1.422	3.697
		Period	−1.567	1.495	−1.048
		Condition	−1.839	1.748	−1.052
		Period × condition	1.894	2.096	0.904
	Slope (β1)	Intercept	1.801**	0.638	2.825
		Period	−1.875*	0.792	−2.367
		Condition	−1.540	0.875	−1.761
		Period × condition	2.709*	1.119	2.422
	Control (βc)	Intercept	−0.118	0.220	−0.536

Note: For variable period, 0=1^st period, 1=2^nd period. For variable condition, 0=monitor condition, 1=suppress condition.

^*p<0.05.

^**p<0.001.