The Contribution of a Speech Perception Intervention to the Prevention of Phonological Awareness Deficits in Children With Speech Sound Disorders
试验速览
- 阶段
- 2 期
- 入组人数
- 96
- 试验地点
- 4
- 主要终点
- Phonological Awareness (Test d'Analyse Auditive en Français [Auditory Analysis Test in French])
研究概览
简要总结
Recent research reveals genetic and symptomatic overlap among children with speech sound disorders (i.e., those who (misarticulate more sounds than would be expected for their age) and children with dyslexia (i.e., those who struggle to learn to read). Children who have speech sound disorders as preschoolers are at risk for the later emergence of dyslexia, a risk that often reveals itself in the form of poor phonological awareness skills during the preschool period. Traditional speech therapy methods focus on articulation accuracy and do not focus on the child's more abstract knowledge of the sound system of the language. The ultimate objective of this research program is to prevent reading disability in children who present with speech sounds disorders. The relative effectiveness of different interventions to help these children achieve age-appropriate phonological processing skills prior to school entry will be investigated. It is expected that a combination of treatment approaches that focus on speech perception skills and vocabulary knowledge will have a superior impact on phonological awareness in comparison with a treatment approach that focuses solely on articulation accuracy.
详细描述
The 72 children participating in the study will be randomly assigned (with concealment of the randomization sequence from study staff) to one of two Child Speech Interventions: Speech Perception or Speech Production. These interventions will be provided in individualized one-hour treatment sessions once per week for six consecutive weeks during the first treatment block. During the second 6 week treatment block all children will receive a group phonological awareness intervention. Concurrently their parents will be randomly assigned to receive instruction in the provision of a home program, either Articulation Therapy or Dialogic Reading. This will result in 4 groups of 18 children with each group receiving one of four combinations of intervention: Speech Production Intervention + Articulation Parent Group; Speech Production Intervention + Dialogic Reading Parent Group; Speech Perception Intervention + Articulation Parent Group; and Speech Perception Intervention + Dialogic Reading Parent Group. Assessments will occur pretreatment, after the first treatment block, after the second treatment block, and 9 months after the end of the second treatment block.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Factorial
- 主要目的
- Prevention
- 盲法
- Single (Outcomes Assessor)
入排标准
- 年龄范围
- 48 Months 至 71 Months（Child）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •primary diagnosis of speech articulation disorder/phonological impairment
- •age 4 to 5 years of age at onset of treatment
- •maternal language Canadian French (at least 75% exposure)
- •must misarticulate at least two phonemes that would typically be mastered by their normally developing age peers
排除标准
- •speech disorder is secondary to a primary condition (e.g., hearing impairment, cleft palate, autism, Down syndrome etc.)
结局指标
主要结局
Phonological Awareness (Test d'Analyse Auditive en Français [Auditory Analysis Test in French])
时间窗: 12 months post treatment onset
次要结局
- Articulation Accuracy (Test Francophone de Phonologie, Paul et Rvachew [Test of French Phonology)(6 weeks post treatment onset; 12 weeks post-treatment onset; 12 months post-treatment onset)
- Vocabulary Knowledge (Échelle de Vocabulaire en Image Peabody [Peabody Picture Vocabulary Test - French Edition)(12 months post-treatment onset)
- Phonological Awareness (Test de Conscience Phonologique, Brosseau-Lapre et Rvachew [Phonological Awareness Test - French Version])(6 weeks post-treatment onset; 12 weeks post-treatment onset)