Table 2.

Latent Growth Curve Analysis Results for Final Model Including Neurocognitive Predictors

Predictors/Outcome	β	b	p Value	CI Lower	CI Upper
Anxiety Intercept
Maternal educationa	0.19	1.42	.023	0.194	2.639
Maternal ethnicity	0.09	1.08	.298	−0.948	3.100
Gender	−0.15	−1.63	.082	−3.461	0.207
Average age	0.00	−0.02	.971	−1.325	1.276
Date of first assessment	−0.05	−0.04	.503	−0.164	0.080
Anxiety (13 years)a	0.22	0.10	.042	0.004	0.195
Flanker task accuracy	−0.17	−0.94	.082	−1.988	0.118
Delta-ERNa	−0.47	−2.52	.000	−3.828	−1.202
AX-CPT d′	0.18	0.97	.143	−0.326	2.260
Delta-ERN × AX-CPT d′a	0.43	2.30	.005	0.702	3.897
Anxiety Slope
Maternal education	−0.14	−0.30	.204	−0.774	0.165
Maternal ethnicity	0.09	0.30	.514	−0.595	1.189
Gender	0.15	0.47	.255	−0.338	1.274
Average age	−0.01	−0.01	.966	−0.590	0.564
Date of third assessment	−0.08	−0.02	.383	−0.075	0.029
Anxiety (13 years)	0.07	0.01	.617	−0.027	0.046
Flanker task accuracy	0.06	0.09	.797	−0.602	0.784
Delta-ERNa	0.61	0.97	.001	0.410	1.538
AX-CPT d′	−0.08	−0.13	.657	−0.685	0.432
Delta-ERN × AX-CPT d′a	−0.52	−0.83	.026	−1.550	−0.100

Gender is coded as 0 = females and 1 = males. Maternal ethnicity is coded as non-Hispanic White = 1 and other = 0. Date of first assessment and date of third assessment were measured in days since the stay-at-home orders. This model fit the data well (χ²₁₄ = 16.56, p = .28, root mean square error of approximation = 0.03, standardized root mean square residual = 0.02, comparative fit index = 0.99).

AX-CPT, AX-Continuous Performance Test; ERN, error-related negativity.

^ap < .05.