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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