Effects of Intensity of Early Communication Intervention

早期沟通干预强度的影响

基本信息

批准号：
7659515
负责人：
STEVEN F. WARREN
金额：
$ 71.12万
依托单位：
UNIVERSITY OF KANSAS MEDICAL CENTER
依托单位国家：
美国
项目类别：
财政年份：
2005
资助国家：
美国
起止时间：
2005-08-01 至 2011-07-31
项目状态：
已结题

项目摘要

DESCRIPTION (provided by applicant): We have pioneered the development of a prelinguistic and linguistic milieu intervention (PLMT) designed to establish intentional communication and enhance the development of early communication and language development in toddlers and young children with language delays and disorders. PLMT involves direct intervention with toddlers as well as parent training designed to establish and support a highly responsive style of parent-child interaction. Our preliminary research using randomized experimental design s has involved a very small "dose" of direct intervention with the child, averaging approximately one hour per week for six months. The effects we have observed have been encouraging, but moderate, especially when measured directly after the 6-month intervention period. The proposed research is a test of the hypothesis that more intensive application of PLMT will have dramatically more positive outcomes, We propose an experimental investigation of the effects of PLMT delivered at two different levels of intensity to 80 young children with general communication delays randomly assigned to either a "high" or "low" intensity group. Children in the low- intensity group will receive one hour of direct intervention per week for 9 months while children assigned to the high-intensity group will receive 5 hours a week of direct intervention for 9 months. All subjects in both groups will be followed for an additional 6 months. Specific aims of the study are to compare the effects of high and low doses of PLMT on children's nonverbal and verbal communication skills. We will also test hypothesized interactions between the interventions and several child pretreatment characteristics and test predicted mediators for the predicted treatment effects. Analyses will include t-tests, 2x2 ANOVA, and multi-level analysis (HLM). Multiple regression or ANCOVA will be used if statistical control of pre-treatment differences are necessary. Five years of funding is requested.

描述（由申请人提供）：我们率先开发了语言前和语言环境干预（PLMT），旨在建立有意识的沟通并增强患有语言迟缓和障碍的幼儿和幼儿的早期沟通和语言发展。 PLMT 涉及对幼儿的直接干预以及旨在建立和支持高度响应的亲子互动方式的家长培训。我们使用随机实验设计进行的初步研究涉及对儿童进行非常小“剂量”的直接干预，平均每周大约一小时，持续六个月。我们观察到的效果令人鼓舞，但效果中等，尤其是在 6 个月干预期后直接测量时。拟议的研究是对这样一个假设的检验，即更密集地应用 PLMT 将产生显着更积极的结果。我们建议对 80 名患有一般沟通延迟的幼儿进行实验研究，以两种不同的强度水平进行 PLMT 的效果，这些幼儿被随机分配到“高”或“低”强度组。低强度组的儿童将在 9 个月内每周接受 1 小时的直接干预，而分配到高强度组的儿童将在 9 个月内每周接受 5 小时的直接干预。两组中的所有受试者将被额外跟踪 6 个月。该研究的具体目的是比较高剂量和低剂量的 PLMT 对儿童非语言和语言沟通技能的影响。我们还将测试干预措施与几个儿童治疗前特征之间假设的相互作用，并测试预测治疗效果的预测中介因素。分析将包括 t 检验、2x2 方差分析和多水平分析 (HLM)。如果需要对治疗前差异进行统计控制，则将使用多元回归或ANCOVA。要求提供五年的资金。