Table 6.

Test–retest reliability: bivariate correlations and intraclass correlations.

ELS composite	Down syndrome
	r	ICCa
Composite 1b	0.84****	0.91****
Composite 2c	0.82****	0.90****
Composite 3d	0.71****	0.83****

Uncorrected p values for individual tests are marked with asterisks as follows: ****p ≤ 0.001. Bold cells contain values significant at p ≤ 0.050 after FDR correction for multiple tests.

^aMixed model, assuming no interaction, and absolute agreement.

^bDefined by high loadings for lexical diversity, syntax, and unintelligibility in conversation and narration.

^cDefined by high loadings for dysfluency in conversation and narration.

^dDefined by high loadings on talkativeness in conversation and narration.