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Table 6 Construct validity: narration (n = 80)

From: Spoken language outcome measures for treatment studies in Down syndrome: feasibility, practice effects, test-retest reliability, and construct validity of variables generated from expressive language sampling

Measures CELF EV CELF FS Vineland EC GFTA SiW SB5 VWM
Lexical diversity .70*** .62*** .39** .63*** .69***
Syntax .70*** .62*** .42** .65*** .71***
Talkativeness .10 .08 − .07 − .05 .04
Unintelligibility − .51*** − .37** − .20 − .51*** − .51***
Dysfluency .29** .20 .11 .27* .18
  1. Note that all values are bivariate zero-order correlations (uncorrected) except for that between dysfluency and the SB5 VWM score, which is a partial correlation controlling for syntax (MLU). All significant correlations remain after FDR correction
  2. ***p < .001, **p < .01, *p < .05