Concurrent Validity and Diagnostic Accuracy of the Dynamic Indicators of Basic Early Literacy Skills and the Comprehensive Test of Phonological Processing
Concurrent Validity and Diagnostic Accuracy of the Dynamic Indicators of Basic Early Literacy Skills and the Comprehensive Test of Phonological Processing
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早期识字基本技能动态指标与语音处理综合测试的同时有效性和诊断准确性
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发表时间：
2003
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通讯作者：
Gary Stoner
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作者：
John M. Hintze;Amanda L. Ryan;Gary Stoner
摘要本研究的目的是（a）检验早期基本读写技能动态指标（DIBELS）与语音加工综合测验（CTSTs）的同时效度;（B）探讨DIBELS在预测CTSTs成绩时的诊断准确性。86名学生在幼儿园的冬天接受了DIBELS和CTBELS。两组措施之间的相关性模式进行了检查和决策准确性研究的基础上建议的切割分数和切割分数确定的结果受试者操作特征（ROC）曲线分析。结果显示，中度至强的相关性DIBELS和CTALOTH表明，两者测量一个类似的结构。决策准确性的分析表明，使用作者建议的截断分数导致极高的灵敏度，然而，这是以牺牲大量的假阳性。使用调整后的分割分数进行随访分析，提高了特异性和阳性预测能力，减少了假阳性，并大大增加了正确分类的数量。
Abstract The purpose of this study was to (a) examine the concurrent validity of the Dynamic Indicators of Basic Early Literacy Skills (DIBELS) with the Comprehensive Test of Phonological Processing (CTOPP), and (b) explore the diagnostic accuracy of the DIBELS in predicting CTOPP performance using suggested and alternative cut-scores. Eighty-six students were administered the DIBELS and the CTOPP in the winter of their kindergarten year. Patterns of correlations between the two sets of measures were examined and decision accuracy studies conducted based on suggested cut-scores and cut-scores determined as a result of Receiver Operator Characteristic (ROC) curve analysis. Results showed moderate to strong correlations between the DIBELS and the CTOPP suggesting that both measure a similar construct. Analysis of decision accuracy indicated that using the author suggested cut-scores resulted in extremely high sensitivity; however, this was at the expense of an inordinate number of false positives. Follow-up analyses using adjusted cut-scores improved specificity and positive predictive power, reduced false positives, and increased the number of correct classifications sizably.