Table 2.

Planned comparisons between groups

	Mean difference, $\widehat{\mathbf{\Psi }}$	Lower 95% CI a	Upper 95% CI	p value b
Vocabulary learning
Grammar-match vs SLI	4.84	−5.41	15.10	0.201
Age-match vs Grammar-match	−12.60	−23.30	−1.93	0.002
Age-match vs. SLI	−17.45	−29.20	5.71	<0.001
Nonverbal paired-associate learning
Grammar-match vs SLI	1.88	−9.77	13.54	0.659
Age-match vs Grammar-match	−5.98	−18.73	6.76	0.200
Age-match vs. SLI	−7.87	−21.42	5.67	0.116

Notes:

^a Confidence intervals are adjusted to control familywise error rate.

^b Unadjusted p-values.