Table 18. .

Mixed Model Results for Affective Ratings Based on Average RT (Goal-completed Intervals Only, Experiment 2)

Predictors	Stress			Positive Affect
	Estimates	SE	p Value	Estimates	SE	p Value
Mean accurate RT	0.52	0.10	< .001***	−0.76	0.12	< .001***
Hard – easy	0.34	0.06	< .001***	−0.15	0.05	.002**
High reward – low reward	0.19	0.04	< .001***	0.15	0.05	.002**
Average congruency	−0.00	0.04	.998	0.03	0.04	.445
Scaled interval session num	−0.17	0.04	< .001***	−0.19	0.04	< .001***
Scaled interval block num	0.02	0.03	.648	−0.06	0.04	.067
Mean accurate RT × challenge	0.09	0.06	.146	−0.01	0.06	.923
Mean accurate RT × reward	0.06	0.05	.268	0.01	0.06	.810
Challenge × reward	0.10	0.04	.012*	−0.03	0.04	.490

*p < .05

**p < .01.

***p < .001.