Increasing Word Learning Efficiency in Children Who Are Deaf and Hard of Hearing Through Retrieval Practice
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 13
- 试验地点
- 1
- 主要终点
- Labeling - Acquisition Effectiveness
研究概览
简要总结
This study is designed to advance the promising yet underutilized research on retrieval practice by evaluating the effectiveness and efficiency of two key retrieval practice features (feedback and spacing). The study uses four single case adapted alternating treatments studies, each with 5- to 9-year-old children who are deaf and hard of hearing to evaluate the effects of feedback and spacing on the efficiency of word learning and retention.
详细描述
The proposed research addresses a long-standing and important challenge of improving language skills of children who are deaf and hard of hearing, a historically under researched group. The study aims to leverage retrieval practice - an empirically validated intervention approach - for improving how efficiently children who are deaf and hard of hearing learn and retain new words. To advance the promising yet underutilized research on retrieval practice, the study completes the next logical step of evaluating the effectiveness and efficiency of two key retrieval practice features: feedback and spacing. Feedback is predicted to result in more efficient learning because it focuses attention on unmastered material, prevents the illusion of success, and reduces repeated errors. Spacing trials are predicted to result in more efficient learning than massed trials because they require more effort with fewer cues provided. The study will accomplish these aims through four single case adapted alternating treatments design studies with 5- to 9- year-old children who are deaf and hard of hearing. Study innovations include the critical evaluation of retention and use of a multi-session intervention context. The knowledge gained will guide language intervention for children who are deaf and hard of hearing.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 5 Years 至 9 Years（Child）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •At least minimal prelingual hearing loss
- •Standard scores of at least 70 for receptive and expressive vocabulary skills
- •English is only spoken language
排除标准
- •Below average nonverbal cognition
- •Uncorrected vision impairment
- •Evidence of severe motor impairment
研究组 & 干预措施
Contrast A
Feedback vs no feedback with massed trials
干预措施: Feedback with massed trials (Behavioral)
Contrast A
Feedback vs no feedback with massed trials
干预措施: No feedback with massed trials (Behavioral)
Contrast B
Feedback vs no feedback with spaced trials
干预措施: Feedback with spaced trials (Behavioral)
Contrast B
Feedback vs no feedback with spaced trials
干预措施: No feedback with spaced trials (Behavioral)
Contrast C
Spaced vs massed trials without feedback
干预措施: No feedback with massed trials (Behavioral)
Contrast C
Spaced vs massed trials without feedback
干预措施: No feedback with spaced trials (Behavioral)
Contrast D
Spaced vs massed trials with feedback
干预措施: Feedback with massed trials (Behavioral)
Contrast D
Spaced vs massed trials with feedback
干预措施: Feedback with spaced trials (Behavioral)
结局指标
主要结局
Labeling - Acquisition Effectiveness
时间窗: End of intervention. The intervention ends when the participant achieves >75% accuracy 3 sessions in a row (up to 6 months).
Count of participants for whom the intervention is successful based on percent accuracy labeling target words expressively (number of target words correctly labeled when shown the object divided by the number of words in the set \[i.e., 4\] times 100). The count of participants indicates the number of participants who exhibited a functional relation indicating greater performance for at least one active intervention condition versus the control condition within the comparison phase.
Labeling - Acquisition Efficiency
时间窗: End of intervention. The intervention ends when the participant achieves >75% accuracy 3 sessions in a row (up to 6 months).
Count of participants for whom the intervention is successful based on percent accuracy labeling target words expressively (number of target words correctly labeled when shown the object divided by the number of words in the set \[i.e., 4\] times 100). The count of participants indicates the number of participants who exhibited a functional relation indicating greater performance for the condition hypothesized to be superior (i.e., "feedback" or "spaced") within the comparison phase.
Labeling - Retention Effectiveness
时间窗: Four weeks after the intervention ends
Count of participants for whom the intervention is successful based on percent accuracy labeling target words expressively (number of target words correctly labeled when shown the object divided by the number of words in the set \[i.e., 4\] times 100). The count of participants indicates the number of participants who exhibited a functional relation indicating greater performance for at least one active intervention condition versus the control condition within the maintenance phase.
Labeling - Retention Efficiency
时间窗: Four weeks after the intervention ends
Count of participants for whom the intervention is successful based on percent accuracy labeling target words expressively (number of target words correctly labeled when shown the object divided by the number of words in the set \[i.e., 4\] times 100). The count of participants indicates the number of participants who exhibited a functional relation indicating greater performance for the condition hypothesized to be superior (i.e., "feedback" or "spaced") within the maintenance phase.
次要结局
- Semantic - Retention Efficiency(Four weeks after the intervention ends)
- Identifying - Acquisition Effectiveness(End of intervention. The intervention ends when the participant achieves >75% accuracy for labeling 3 sessions in a row (up to 6 months).)
- Identifying - Acquisition Efficiency(End of intervention. The intervention ends when the participant achieves >75% accuracy for labeling 3 sessions in a row (up to 6 months).)
- Semantic - Acquisition Effectiveness(End of intervention. The intervention ends when the participant achieves >75% accuracy for labeling 3 sessions in a row (up to 6 months).)
- Semantic - Acquisition Efficiency(End of intervention. The intervention ends when the participant achieves >75% accuracy for labeling 3 sessions in a row (up to 6 months).)
- Identifying - Retention Effectiveness(Four weeks after the intervention ends)
- Identifying - Retention Efficiency(Four weeks after the intervention ends)
- Semantic - Retention Effectiveness(Four weeks after the intervention ends)
研究者
Jena McDaniel
Assistant Professor
Vanderbilt University Medical Center