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EBP Compendium: Summary of Systematic Review

Is There a Role for Speech Output in Interventions for Persons with Autism? A Review

Schlosser, R. W., & Blischak, D. M. (2001).
Focus on Autism and Other Developmental Disabilities, 16(3), 170-178.

Indicators of Review Quality:

The review addresses a clearly focused question Yes
Criteria for inclusion of studies are provided Yes
Search strategy is described in sufficient detail for replication Yes
Included studies are assessed for study quality Yes
Quality assessments are reproducible No

Description: This is a review of case studies, single-subject experimental studies, and group studies investigating the use of speech output interventions for individuals with autism.

Question(s) Addressed:

Is there a role for speech output in interventions for persons with autism?

Population: Persons with autism (with or without mental retardation) with little or no functional speech. Individuals with other related diagnoses such as Rett syndrome, Asperger syndrome, and Angelman's syndrome were excluded.

Intervention/Assessment: Interventions which used synthetic or digitized speech output.

Number of Studies Included: Not stated

Years Included: 1967 – 2001



  • Treatment
    • Cognition
      • AAC
        • Speech Generating Devices - Limited quality research is available with speech output used as an independent variable. However, the overall results of studies which were found yielded positive results. There appears to be a role for speech output in interventions for people with autism. “Still, the question of what the exact roles of speech output might be remain” (p. 176).

Keywords: Autism Spectrum Disorders, Augmentative and Alternative Communication, Voice Output Communication Aids

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Added to Compendium: January 2012

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