Given the relatively sparse experimental data focused on facilitating speech in children who do not readily imitate, theoretical support emerges as particularly key and underscores the need for clinicians to consider why they are doing what they are doing. In addition, this review emphasizes the need for the research community to bridge the gap between pressing clinical needs and the limited evidence base that is currently available.

This study compared school-age outcomes for 57 children born prematurely, at ≤32 weeks or <1500g, with outcomes for 57 children born at full term with no reported perinatal complications. The two groups were matched for age, sex, race, and parental education. Data came from the Western Reserve Reading Project and included discourse-level language samples collected at three points in time, each a year apart. In addition, standardized test results were obtained for IQ, digit span, and global language ability. The language samples were analyzed to yield a number of semantic and syntactic measures which were condensed via factor analysis to a semantic score and a syntactic score. Regression models showed statistically significant differences between the two groups for standardized test results, with more ambiguous results for the discourse-level language measures. The control group outperformed the premature group on both semantic and syntactic measures, but those differences never reached statistical significance and narrowed markedly at the third-year assessment point. These findings suggest that in the absence of frank neurological impairment, sophisticated semantic and syntactic skills may be relatively intact in the conversational and narrative language of children born prematurely. The decrements observed on standardized assessments of language and cognition may arise from deficits in domains such as attention or executive function, rather than reflecting significant impairment in their ability to learn language.

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Background Despite support for the use of conversational language measures, concerns remain regarding the extent to which they may be confounded with aspects of child temperament, extraversion in particular. Aims This study of 161 twins from the Western Reserve Reading Project (WRRP) examined the associations between children’s conversational language use and three key aspects of child temperament: Surgency (i.e., introversion/extraversion), Effortful Control (i.e., attention and task persistence), and Negative Affectivity (e.g., fear, anger, sadness). Child biological sex was considered as a possible moderating factor. Methods & Procedures Correlational analyses were conducted between aspects of temperament during early school-age years (i.e., 7 to 8 yrs), as measured by the Children’s Behavior Questionnaire-Short Form (CBQ; Putnam & Rothbart, 2006), and six different measures of children’s conversational language use: total number of complete and intelligible utterances (TCICU), number of total words (NTW), mean length of utterance (MLU), total number of conjunctions (TNC), number of different words (NDW), and measure D (i.e., a measure of lexical diversity). Values for NTW, TNC, and NDW were derived both on the entire sample and on the first 100 C-units. Correlations between language and temperament were compared between girls and boys using the Fisher r-to-z transformation to examine the significance of potential moderating effects. Outcomes & Results Children’s reported variability in Effortful Control did not correlate significantly with any of the child language measures. In contrast, children’s Negative Affectivity and Surgency tended to demonstrate positive, albeit modest, correlations with those conversational language measures that were derived from the sample as a whole, rather than from a standardized number of utterances. MLU, as well as measures of NDW and NTW derived from standardized sample lengths of 100 C-units, did not correlate with any measure of child temperament. TNC demonstrated an unexpected negative correlation with child Surgency when it was derived from a standardized number of C-units but not when derived from the entire sample length. Child biological sex did not moderate the significant associations between language and temperament measures. Conclusions & Implications Overall, measures that control for volubility did not correlate significantly with child temperament; however, measures that reflected volubility tended to correlate weakly with some aspects of temperament, particularly Surgency. Results provide a degree of discriminant evidence for the validity of MLU and measures of type (i.e., NDW) and token use (i.e., NTW) when derived from a standardized number of utterances.