Applying Item Response Theory to the Development of a Screening Adaptation of the Goldman-Fristoe Test of Articulation-Second Edition.
Applying Item Response Theory to the Development of a Screening Adaptation of the Goldman-Fristoe Test of Articulation-Second Edition.
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将项目反应理论应用于高盛弗里斯托清晰度测试第二版筛选改编的开发。
DOI：
10.1044/2017_jslhr-l-16-0392
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
Storkel,HollyL
中科院分区：
文献类型：
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作者：
Brackenbury,Tim;Zickar,MichaelJ;Munson,Benjamin;Storkel,HollyL
目的项目反应理论 (IRT) 是一种心理测量方法，它使用潜在的特质能力（例如语音生成技能）来模拟因难度和歧视而异的单个项目的表现。 IRT 分析应用于学龄前儿童在 Goldman-Fristoe 发音测试第二版 (GFTA-2) 上的单词生成，以确定语音生成技能筛选测量的候选者。方法使用 2 参数逻辑模型对 154 名学龄前儿童的音素准确性进行分析，这些儿童的 GFTA-2 言语技能范围从第 1 个百分位到第 90 个百分位以上。结果总共 108 个学龄前儿童的音素准确性。来自单词声音子测试中刺激的 232 个音素符合 IRT 模型。这些音素以及这些音素中最困难的子组与儿童在 GFTA-2 上的总体百分位数分数显着相关。针对 5 个和 10 个最困难的音素计算的回归方程预测了与其他筛选措施相当的总体百分位数分数。结论这些结果表明可以用少量声音有效地筛选语音产生的准确性。他们激发了进一步的研究，开发一种针对儿童言语声音产生技能的筛选措施，其刺激由有限数量的困难音素组成。
PurposeItem response theory (IRT) is a psychometric approach to measurement that uses latent trait abilities (e.g., speech sound production skills) to model performance on individual items that vary by difficulty and discrimination. An IRT analysis was applied to preschoolers' productions of the words on the Goldman-Fristoe Test of Articulation–Second Edition (GFTA-2) to identify candidates for a screening measure of speech sound production skills.MethodThe phoneme accuracies from 154 preschoolers, with speech skills on the GFTA-2 ranging from the 1st to above the 90th percentile, were analyzed with a 2-parameter logistic model.ResultsA total of 108 of the 232 phonemes from stimuli in the sounds-in-words subtest fit the IRT model. These phonemes, and subgroups of the most difficult of these phonemes, correlated significantly with the children's overall percentile scores on the GFTA-2. Regression equations calculated for the 5 and 10 most difficult phonemes predicted overall percentile score at levels commensurate with other screening measures.ConclusionsThese results suggest that speech production accuracy can be screened effectively with a small number of sounds. They motivate further research toward the development of a screening measure of children's speech sound production skills whose stimuli consist of a limited number of difficult phonemes.