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A meta‐analysis on the effectiveness of intervention in children with primary speech and language delays/disorders: Focusing on China and the United States
Author(s) -
Zhang Zhigang,
Xu Qinfang,
Joshi R. Malatesha
Publication year - 2020
Publication title -
clinical psychology and psychotherapy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.315
H-Index - 76
eISSN - 1099-0879
pISSN - 1063-3995
DOI - 10.1002/cpp.2522
Subject(s) - psychological intervention , intervention (counseling) , psychology , meta analysis , random effects model , china , clinical psychology , developmental psychology , medicine , psychiatry , political science , law
The purpose of this meta‐analysis was to investigate the immediate and long‐term effects of intervention for children with primary speech and language delays/disorders and to explore whether some characteristics of interventions, specifics of the study and research participants moderate the magnitude of the effectiveness of interventions. Using the random effect model, we pooled the effect size and conducted a publication bias evaluation, a moderating effect analysis in CMA 2.0. Results of a random effects model analysis demonstrated a moderate immediate effect ( g = 0.70), whereas the long‐term efficacy was small ( g = 0.23). Additionally, type of measure, language of intervention, parental involvement, intervention content and study quality, as well as the duration of intervention, significantly moderated the effect size of intervention effectiveness.