The Effect of Phonotactic Probability and Orthography on Vocabulary Learning
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 23
- 试验地点
- 1
- 主要终点
- 1. Vocabulary Production 2. Vocabulary Recognition 3. Vocabulary Comprehension 4. Spelling
研究概览
简要总结
The purpose of the study is to investigate how phonotactic probability) and orthography affect vocabulary by children with low oral language levels. The investigators will use a 2 x 2 within-subjects factorial design where every participant receives the treatment. This 12-week study aims to improve vocabulary learning efficiency for children with low oral language levels. The study's findings will uniquely contribute to the field in that this is the first research study using real words instead of nonwords while combining word learning research with vocabulary learning.
详细描述
The investigators are proposing a vocabulary intervention that analyzes word sounds and sound segments. This analysis offers valuable insights into how children at risk for specific learning disabilities, such as dyslexia, DLD or speech and language impairments, learn words differently from typically developing children.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Other
- 盲法
- None
入排标准
- 年龄范围
- 8 Years 至 9 Years（Child）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Enrolled in or just completed third grade.
排除标准
- •Any diagnosis of sensory impairments A diagnosis of autism or traumatic brain injury
研究组 & 干预措施
Single group Assignment
There are no subgroups in this study. All participants will receive the intervention.
干预措施: VOCAB + (Behavioral)
结局指标
主要结局
1. Vocabulary Production 2. Vocabulary Recognition 3. Vocabulary Comprehension 4. Spelling
时间窗: up to 12 weeks
1. Production Number of correctly produced target words (range 0-32), measured using a picture-naming task, scored as correct (1) or incorrect (0), and reported as percentage correct. Time Frame Posttest (Weeks 11-12) 2. Recognition Number of correctly identified target words from a 4-choice array (range 0-32), scored as correct (1) or incorrect (0), and reported as percentage correct. Time Frame Posttest (Weeks 11-12) 3. Comprehension Number of correctly selected target images from a 4-option array (range 0-32), scored as correct (1) or incorrect (0), and reported as percentage correct. Time Frame Posttest (Weeks 11-12) 4. Spelling Number of correctly spelled target words (range 0-32), measured using a dictated spelling task, scored as correct (1) or incorrect (0), and reported as percentage correct. Time Frame Posttest (Weeks 11-12)
次要结局
- 1. Learning Change Vocabulary Production 2. Learning Change Vocabulary Recognition 3. Learning Change Vocabulary Comprehension 4. Learning Change Vocabulary Spelling(up to 12 weeks)
- 1. Daily Vocabulary Production 2. Daily Vocabulary Recognition 3. Daily Vocabulary Comprehension 4.Daily Vocabulary Spelling(Weeks 3-10)
研究者
Mariana Silva
Doctoral Student
Arizona State University