Comprehension of Written Grammar Test: Reliability and Known-Groups Validity Study With Hearing and Deaf and Hard-of-Hearing Students
Comprehension of Written Grammar Test: Reliability and Known-Groups Validity Study With Hearing and Deaf and Hard-of-Hearing Students
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DOI：
10.1093/deafed/env049
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发表时间：
2016-01-01
影响因子：
2
通讯作者：
Mazlouman, Shahla
中科院分区：
文献类型：
--
作者：
Cannon, Joanna E.;Hubley, Anita M.;Mazlouman, Shahla
当前研究的目的是为《书面语法理解》（CWG；伊斯特布鲁克斯，2010年）这一针对26种英语书面语法结构的接受性测试收集效度证据，以供失聪和有听力障碍（DHH）儿童使用。研究人员收集了2 - 6年级的98名参与者（49名失聪和有听力障碍儿童以及49名听力正常儿童）的信度和效度数据。研究目标是：（a）检验4周的重测信度数据；（b）通过检验两组在CWG词汇预测试和主测试以及选定结构上的预期差异，提供已知群体效度的证据。结果表明，CWG测试分数的重测信度估计值非常好。失聪和有听力障碍的参与者在CWG词汇预测试和主测试中的表现，在统计学上显著低于听力正常的参与者。失聪和有听力障碍的参与者在大多数预期的语法结构（例如，基本句子模式、助动词“be”的单复数形式、时态、比较级和补语）上的表现也显著较低，这也提供了已知群体的证据。总体而言，这项研究的结果有力地证明了分数的信度以及从CWG得出的基于已知群体的推断的效度。
The aim of the current study was to gather validation evidence for the Comprehension of Written Grammar (CWG; Easterbrooks, 2010) receptive test of 26 grammatical structures of English print for use with children who are deaf and hard of hearing (DHH). Reliability and validity data were collected for 98 participants (49 DHH and 49 hearing) in Grades 2-6. The objectives were to: (a) examine 4-week test-retest reliability data; and (b) provide evidence of known-groups validity by examining expected differences between the groups on the CWG vocabulary pretest and main test, as well as selected structures. Results indicated excellent test-retest reliability estimates for CWG test scores. DHH participants performed statistically significantly lower on the CWG vocabulary pretest and main test than the hearing participants. Significantly lower performance by DHH participants on most expected grammatical structures (e.g., basic sentence patterns, auxiliary "be" singular/plural forms, tense, comparatives, and complementation) also provided known groups evidence. Overall, the findings of this study showed strong evidence of the reliability of scores and known group-based validity of inferences made from the CWG.