Bibliographic Details
| Title: |
A Systematic Review and Meta-Analysis of Predictors of Expressive-Language Outcomes Among Late Talkers. |
| Authors: |
Fisher, Evelyn L.1 efisher7@student.gsu.edu |
| Source: |
Journal of Speech, Language & Hearing Research. Oct2017, Vol. 60 Issue 10, p2935-2948. 14p. 4 Charts. |
| Subject Terms: |
*Language acquisition, *Delayed speech, *Speech disorders, *Statistical correlation, *ERIC (Information retrieval system), *Vocabulary, *Inter-observer reliability, Expressive language disorder, Psychology of preschool children, Chi-squared test, Psychology information storage & retrieval systems, MEDLINE, Meta-analysis, Health outcome assessment, Time, Systematic reviews, Socioeconomic factors, Effect sizes (Statistics), Data analysis software, Descriptive statistics |
| Abstract: |
Purpose: The purpose of this study was to explore the literature on predictors of outcomes among late talkers using systematic review and meta-analysis methods. We sought to answer the question: What factors predict preschool-age expressive-language outcomes among late-talking toddlers? Method: We entered carefully selected search terms into the following electronic databases: Communication & Mass Media Complete, ERIC, Medline, PsycEXTRA, Psychological and Behavioral Sciences and PsycINFO. We conducted a separate, random-effects model meta-analysis for each individual predictor that was used in a minimum of 5 studies. We also tested potential moderators of the relationship between predictors and outcomes using metaregression and subgroup analysis. Last, we conducted publication-bias and sensitivity analyses. Results: We identified 20 samples, comprising 2,134 children, in a systematic review. According to the results of the metaanalyses, significant predictors of expressive-language outcomes included toddlerhood expressive-vocabulary size, receptive language, and socioeconomic status. Nonsignificant predictors included phrase speech, gender and family history. Conclusions: To our knowledge this is the first synthesis of the literature on predictors of outcomes among late talkers using meta-analysis. Our findings clarify the contributions of several constructs to outcomes and highlight the importance of early receptive language to expressive-language development. [ABSTRACT FROM AUTHOR] |
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| Database: |
Education Research Complete |
