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Table 4 Standardized regression coefficients for predictors of change in vocabulary and grammar skills among boys with FXS over a 2-year period

From: Contributions of phonological and verbal working memory to language development in adolescents with fragile X syndrome

 

β

t

p value

Vocabulary change composite

 Leiter-R growth score

−0.02

−0.15

0.88

 Autism symptom severity

0.26

1.96

0.07

 Nonword repetition

0.51*

3.67

<0.01

 Backward digit recall

0.56*

3.42

<0.01

Syntax change composite

 Leiter-R growth score

−0.24

−1.08

0.29

 Autism symptom severity

−0.08

−0.46

0.65

 Nonword repetition

0.46*

2.47

<0.05

 Backward digit recall

0.45

2.03

0.06

  1. *p < 0.05, statistically significant