. 2019 Jul 27;24:101961. doi: 10.1016/j.nicl.2019.101961

Table 2.

Correlations (Spearman's rho) between number of produced words and word features (N = 58). The table shows the correlation coefficient and p-value for each pair of variables.

	Lexical diversity				Sophistication	Phonological word features
	MTLD	HD-D	Maas	PCA component (lexical diversity)	Lexical sophistication	Number of phonemes	Phonological neighborhood density	Word-average biphoneme probability	PCA component (phonological word features)
Number of produced words	0.718^⁎⁎/ <0.0001	0.772^⁎⁎/ <0.0001	−0.008/ 0.950	0.576^⁎⁎/ <0.0001	−0.029/ 0.828	0.300^⁎/ 0.022	0.026/ 0.026	0.105/ 0.433	0.166/ 0.213
MTLD		0.945^⁎⁎/ <0.0001	−0.525^⁎⁎/ <0.0001	0.936^⁎⁎/ <0.0001	0.073/ 0.587	0.536^⁎⁎/ <0.0001	−0.182/ 0.171	−0.012/. 931	0.317^⁎/ 0.015
HD-D			−0.522^⁎⁎/ <0.0001	0.928^⁎⁎/ <0.0001	0.102/ 0.448	0.578^⁎⁎/ <0.0001	−0.223/ 0.092	0.006/ 0.967	0.353^⁎⁎/ 0.007
Maas				−0.748^⁎⁎/ <0.0001	−0.419^⁎⁎/ 0.001	−0.595^⁎⁎/ <0.0001	0.586^⁎⁎/ <0.0001	−0.161/ 0.226	−0.543^⁎⁎/ <0.0001
PCA component (lexical diversity)					0.213/ 0.108	0.619^⁎⁎/ <0.0001	−0.352^⁎⁎/ 0.007	0.043/ 0.747	0.437^⁎⁎/ 0.001
Lexical sophistication						0.433^⁎⁎/ 0.001	−0.436^⁎⁎/. 001	0.380^⁎⁎/ 0.003	0.502^⁎⁎/ <0.0001
Number of phonemes							−0.767^⁎⁎/ <0.0001	0.469^⁎⁎/ <0.0001	0.898^⁎⁎/ <0.0001
Phonological neighborhood density								−0.464^⁎⁎/ <0.0001	−0.868^⁎⁎/ <0.001
Word-average biphoneme probability									0.732^⁎⁎/ <0.0001

HD-D = hypergeometric distribution of the lexical diversity measure “D”; MTLD = measure of textual lexical diversity; PCA component = the 1st principal component; SD = standard deviation.

^⁎⁎

Correlation is significant at the 0.01 level (two-tailed).

^⁎

Correlation is significant at the 0.05 level (two-tailed).