School of Education, University of Delaware, Newark, DE 19716, USA.
J Learn Disabil. 2010 Mar-Apr;43(2):108-21. doi: 10.1177/0022219409359342.
The purposes of this study were to investigate the reliability and construct validity of measures of reading component skills with a sample of adult basic education (ABE) learners, including both native and nonnative English speakers, and to describe the performance of those learners on the measures. Investigation of measures of reading components is needed because available measures were neither developed for nor normed on ABE populations or with nonnative speakers of English. The study included 486 students, 334 born or educated in the United States (native) and 152 not born or educated in the United States (nonnative) but who spoke English well enough to participate in English reading classes. All students had scores on 11 measures covering five constructs: decoding, word recognition, spelling, fluency, and comprehension. Confirmatory factor analysis (CFA) was used to test three models: a two-factor model with print and meaning factors; a three-factor model that separated out a fluency factor; and a five-factor model based on the hypothesized constructs. The five-factor model fit best. In addition, the CFA model fit both native and nonnative populations equally well without modification, showing that the tests measure the same constructs with the same accuracy for both groups. Group comparisons found no difference between the native and nonnative samples on word recognition, but the native sample scored higher on fluency and comprehension and lower on decoding than did the nonnative sample. Students with self-reported learning disabilities scored lower on all reading components. Differences by age and gender were also analyzed.
本研究旨在调查阅读成分技能测量在成人基础教育(ABE)学习者样本中的信度和结构效度,包括以英语为母语和非母语的学习者,并描述这些学习者在这些测量上的表现。对阅读成分测量的研究是必要的,因为现有的测量方法既不是为 ABE 人群开发的,也不是为以英语为母语的非英语人士制定的。该研究包括 486 名学生,其中 334 名学生在美国出生或接受教育(母语),152 名学生不是在美国出生或接受教育(非母语),但他们的英语说得足够好,可以参加英语阅读课程。所有学生在 11 项涵盖五个构念的测量上都有得分:解码、单词识别、拼写、流畅度和理解。验证性因子分析(CFA)用于测试三个模型:一个具有印刷和意义因素的两因素模型;一个将流畅度因素分离出来的三因素模型;以及一个基于假设构念的五因素模型。五因素模型拟合得最好。此外,CFA 模型无需修改即可同时很好地拟合母语和非母语群体,表明这些测试以相同的准确性测量两组相同的构念。组间比较发现,母语和非母语样本在单词识别上没有差异,但母语样本在流畅度和理解上的得分高于非母语样本,在解码上的得分低于非母语样本。自我报告有学习障碍的学生在所有阅读成分上的得分都较低。还分析了年龄和性别差异。