Table 5.

Test–retest reliability: bivariate correlations and intraclass correlations.

ELS composite	Fragile X syndrome
	r	Icca
Composite 1b	0.91****	0.95****
Composite 2c	0.82****	0.81****
Composite 3d	0.77****	0.87****

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 dysfluency in conversation and narration.

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

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