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The problem
Intervention: Caregiver-mediated spoken language interventions delivered by or under guidance of speech and language therapists to support early language development in children under five
Who it was tested with: Children under five presenting with risk factors for developmental language disorder (prematurity, low socioeconomic status, caregiver language concerns, or early language screening/assessment scores indicating risk), excluding those with intellectual disability, autism, or other genetic conditions.
Children or communities are compared with a group that did not receive the intervention, or followed over years. This is the design that best separates what the intervention did from everything else that changed.
"Meta-analysis was performed on nine Randomised Controlled Trials involving 947 children." and "Meta-analysis indicated a significant effect of caregiver-mediated spoken language interventions on language outcomes compared to treatment-as-usual, non-language intervention or waitlist control conditions." This represents a robust experimental design with multiple randomised comparisons showing consistent benefit of the intervention over various control conditions.
The document does not specify which control conditions were most common, the magnitude of effects across studies, or moderators of effectiveness beyond noting that factors like dosage and intervention components were examined. Geographic distribution of included studies is not reported. Studies excluded children with comorbid conditions, limiting generalisability.
Across countries and designs
1 study · 0 countries
