Virtual Reality-supported Language Intervention for Preschool Children With DLD

A Randomized Controlled Trial on the Efficacy of Virtual Reality-Supported Speech Therapy in Preschool Children With Developmental Language Disorder

This study aims to test the effectiveness of virtual reality-supported speech therapy in improving basic language skills in children aged 3 to 6 years diagnosed with Developmental Language Disorder (DLD). Participants are randomly assigned to either traditional speech therapy or virtual reality-supported therapy, with the same frequency and duration of intervention. Language outcomes are assessed before and after treatment using the Language development level test (TVL), a standardized assessment of Italian for preschoolers. The study adopts a randomized controlled design with individualized, goal-oriented therapy delivered by certified speech-language pathologists.

Inclusion Criteria:

• Age between 3 and 6 years at enrollment
• Clinical diagnosis of Developmental Language Disorder (DLD) based on DSM-5 and standardized language assessments
• Developmental Quotient (DQ) > 70 on the Griffiths III Scales
• Good general health without neurological or psychiatric comorbidities
• Informed consent signed by a parent or legal guardian

Exclusion Criteria:

• Age not between 3 and 6 years
• Lack of clinical diagnosis of Developmental Language Disorder (DLD)
• Developmental Quotient (DQ) < 70 on the Griffiths Scale III
• Presence of neurological or psychiatric comorbidities
• Lack of signed informed consent from a parent or legal guardian