Table 3.

Intervention group differences in change at post-intervention and 4-month follow-up.

	Change at Post-Intervention			Change at Follow-up
Construct	AE [BS 95% CI]	Control [BS 95% CI]	Difference [BS 95% CI]	AE [BS 95% CI]	Control [BS 95% CI]	Difference [BS 95% CI]
Story recall	0.44* [0.31/0.59]	0.18 [0.02/0.33]	0.26† [0.07/0.46]	0.20† [0.04/0.37]	0.04 [−0.10/0.19]	0.16 [−0.06/0.38]
Thematic recall	0.41* [0.22/0.64]	−0.07 [−0.21/0.09]	0.49* [0.23/0.75]	0.13 [−0.05/0.33]	0.09 [−0.06/0.24]	0.04 [−0.19/0.29]
Category fluency	0.06 [−0.15/0.28]	0.09 [−0.17/0.33]	−0.03 [−0.35/0.31]	0.15 [−0.01/0.32]	0.26† [0.07/0.47]	−0.10 [−0.39/0.13]
Spatial WM	−0.07 [−0.28/0.13]	−0.06 [−0.27/0.16]	−0.01 [−0.29/0.27]	0.11 [−0.06/0.31]	0.12 [−0.12/0.36]	−0.01 [−0.31/0.29]
Verbal WM	0.11 [−0.05/0.26]	0.21* [0.07/0.36]	−0.10 [−0.32/0.09]	0.05 [−0.05/0.19]	−0.03 [−0.10/0.09]	0.07 [−0.07/0.22]
Task switching	0.10 [−0.14/0.27]	0.18† [0.04/0.32]	−0.08 [−0.34/0.15]	0.20 [0.03/0.41]	0.09 [−0.10/0.32]	0.11 [−0.18/0.38]

Note: Intervention group comparisons were made in a grouped latent change score model, including covariates and constraints to ensure measurement invariance longitudinally and between groups. Unstandardized coefficients are reported for measures normed to pre-intervention means and standard deviations of the total sample.*p < 0.01; ^†p < 0.05; α’ = 0.01. AE, active experiencing intervention condition; Control, active control condition; BS 95% CI, bias-corrected bootstrapped 95% confidence intervals; WM, working memory.