Table 8. Partial Correlations between Properties of Language Exposure and Measures of Language Development Holding Relative Amount of Single-Language Exposure Constant, for English and Spanish (N=29).
| Measures | Vocabulary Score | Grammar Score |
|---|---|---|
| English | ||
|
| ||
| Percent time in English-only blocks held constant | ||
| Number of English-only conversational contexts | .043 | .225 |
| Number of English-only conversational partners | .384* | .363* |
| Number of different sources of English | .408* | .381* |
| Percent of English-only blocks with native speakersa | .424* | .206 |
|
| ||
| Spanish | ||
|
| ||
| Percent time in Spanish-only blocks held constant | ||
| Number of Spanish-only conversational contexts | -.321* | -.151 |
| Number of Spanish-only conversational partners | -.160 | -.083 |
| Number of different sources of Spanish | .188 | .041 |
| Percent of Spanish-only blocks with native speakersb | -.150 | .142 |
a
N=27.
b
N=26.
*
p < .05, one-tailed.