Table 1.

Linear Mixed Model Effects for Accuracy and Reaction Time Across 10 Blocks of the Probabilistic Learning Task (Operant Conditioning)

Variable	t	p	d
Accuracy
Intercept	22.941	< .001**	1.989
GAD status	0.141	.888	0.012
Condition	0.396	.692	0.034
Linear trend	4.479	< .001**	0.388
Quadratic trend	−2.826	.005*	−0.245
GAD × Linear	−2.031	.043*	−0.176
GAD × Quadratic	1.381	.168	0.120
Condition × Linear	−1.084	.278	−0.094
Condition × Quadratic	.887	.375	0.077
GAD × Condition	−0.438	.278	−0.038
GAD × Condition × Linear	1.180	.238	0.102
GAD × Condition × Quadratic	−1.121	.263	−0.097
Reaction time
Intercept	24.814	< .001**	2.152
GAD status	−1.547	.123	−0.134
Condition	−1.340	.181	−0.116
Linear trend	−4.886	< .001**	−0.424
Quadratic trend	3.404	.001**	0.295
GAD × Linear	0.405	.685	0.035
GAD × Quadratic	−0.532	.595	−0.046
Condition × Linear	0.989	.323	0.086
Condition × Quadratic	−1.096	.273	−0.095
GAD × Condition	0.210	.834	0.018
GAD × Condition × Linear	−0.103	.918	−0.009
GAD × Condition × Quadratic	0.558	.577	0.048

Note: GAD = generalized anxiety disorder.

^*p < .05.

^**p < .01.