A Meta-Analysis of Phonemic Awareness Instruction Provided to Children Suspected of Having a Reading Disability.

PURPOSE: The present meta-analysis sought to investigate the effects of phonemic awareness instruction provided to children suspected of having a reading disability. METHOD: Seven databases were systematically searched, and 1,643 unique manuscripts were reviewed for inclusion. Data were extracted from 138 included manuscripts to evaluate the use of phonemic awareness instruction with children suspected of having a reading disability. A random effects model was then used to conduct a meta-analysis of these data with regard to child outcomes. RESULTS: Gains in this population associated with phonemic awareness instruction can vary as a function of the outcome being used. On average, phonemic awareness instruction had a medium effect on composite (g = 0.511) and segmentation (g = 0.571) outcomes and a small effect on outcomes measuring blending (g = 0.341), first sound identification (g = 0.428), and deletion (g = 0.248). Instruction effects were strongest in kindergarten and first grade, but positive outcomes were also found for older children. There was not a significant relationship between cumulative intervention intensity and child performance. CONCLUSIONS: The present meta-analysis confirms that phonemic awareness instruction can be effective with children of varying ages and that significant gains can be observed on the key outcome measures of segmentation and blending. Graphemes should be incorporated into phonemic awareness instruction, and future studies need to provide information on dosage beyond just the length and frequency of sessions to clarify which aspects of these interventions are most efficient. SUPPLEMENTAL MATERIAL: https://doi.org/10.23641/asha.20277714.

Service Delivery Schedule Effects on Speech Sound Production Outcomes.

Purpose Children with speech sound disorders feature prominently on the caseloads of speech-language pathologists working in schools, with many receiving services once or twice weekly for 20-30 min. This study compared the outcomes of services provided twice weekly for 30 min to those provided 4 times weekly for 15 min to examine their effectiveness in remediating speech sound disorders in an elementary school setting. Method A total of 35 students were recruited from an existing public school caseload for participation. Participants were randomly assigned to receive school-based speech therapy services for either 30 min twice weekly or 15 min 4 times weekly. There were no differences between groups in age, gender, or the amount of time spent in general education. Growth was measured by the percentage of Individualized Education Program goals mastered and the percentage of sounds produced correctly in isolation. Results After one calendar year, there was a negligible difference between groups on both the percentage of Individualized Education Program goals mastered and the percentage of sounds produced correctly in isolation. On average, both scheduling configurations were effective in meeting students' needs. Conclusions The results of this study suggest that children with speech sound disorders receiving school-based speech therapy services can benefit from a variety of scheduling options. Awareness of such options is an invaluable resource to speech-language pathologists wanting to provide effective and efficient services. Future research should continue investigating service delivery models' effects in applied settings.