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一种针对学龄前儿童的实验性早期读写能力筛查工具的心理测量特征。

Psychometric profile of an experimental Emergent Literacy Screener for preschoolers.

作者信息

Bailet Laura L, Zettler-Greeley Cynthia, Lewis Kandia

机构信息

Nemours BrightStart!

出版信息

Sch Psychol Q. 2018 Mar;33(1):120-136. doi: 10.1037/spq0000222. Epub 2017 Aug 31.

Abstract

Home literacy activities influence children's emergent literacy progress and readiness for reading instruction. To help parents fulfill this opportunity, we developed a new Emergent Literacy Screener (ELS) and conducted 2 studies of its psychometric properties with independent prekindergarten samples. For Study 1 (n = 812, Mage = 54.4 months, 49.4% male, 46.1% white) exploratory factor analyses (EFA) supported a 5-factor structure. EFA and item calibration supported the removal of 10 items from the original 30 test items. The resultant 20-item ELS demonstrated good reliability (Cronbach's alpha = .83) and significant positive correlation, r = .50, p < .001 with a standardized emergent literacy measure, Get Ready to Read - Revised. For Study 2 (n = 959, Mage = 53.5 months, 52.3% male, 60.3% white), confirmatory factor analyses (CFA) supported a bifactor model, which captured direct effects of 5 specific subfactors and an overarching emergent literacy factor. Using a cut score of 15, the ELS demonstrated moderate sensitivity (.71) and specificity (.61). Negative predictive value was high, whereas positive predictive value was low. Overall the ELS demonstrated acceptable psychometric characteristics for use by parents of prekindergarten children, providing a promising new tool for universal emergent literacy screening and an opportunity to identify where children are in their emergent literacy development. Implications for further research and practice are discussed. (PsycINFO Database Record

摘要

家庭读写活动会影响儿童早期读写能力的发展以及他们对阅读教学的准备程度。为了帮助家长抓住这个机会,我们开发了一种新的早期读写能力筛查工具(ELS),并对其心理测量特性进行了两项研究,样本为独立的学前班儿童。在研究1中(n = 812,平均年龄Mage = 54.4个月,49.4%为男性,46.1%为白人),探索性因素分析(EFA)支持了一个五因素结构。EFA和项目校准支持从最初的30个测试项目中删除10个项目。由此产生的20个项目的ELS显示出良好的信度(克朗巴哈系数α = 0.83),并且与标准化的早期读写能力测量工具《准备好阅读 - 修订版》有显著正相关,r = 0.50,p < 0.001。在研究2中(n = 959,平均年龄Mage = 53.5个月,52.3%为男性,60.3%为白人),验证性因素分析(CFA)支持了一个双因素模型,该模型捕捉了5个特定子因素和一个总体早期读写能力因素的直接影响。使用15分的临界分数,ELS显示出中等敏感性(0.71)和特异性(0.61)。阴性预测值较高,而阳性预测值较低。总体而言,ELS显示出可接受的心理测量特征,可供学前班儿童的家长使用,为普遍的早期读写能力筛查提供了一个有前景的新工具,并提供了一个机会来确定儿童在早期读写能力发展中的位置。文中还讨论了对进一步研究和实践的启示。(PsycINFO数据库记录)

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