Seymour H N, Ralabate P K
J Commun Disord. 1985 Apr;18(2):139-48. doi: 10.1016/0021-9924(85)90042-5.
Production and perception of word-final /theta/ was assessed among Black English and standard English speaking children of grades 1-4. The two dialectal groups were significantly different in production but not in perception of the word-final /theta/. Comparable perceptual performance on discrimination and recognition tasks across the four grade-levels indicated parallel perceptual mastery of /theta/ between groups despite production differences of form. Production of respective adult dialect forms, that is, /theta/ for standard English and /theta/----/f/ for Black English, preceded perceptual mastery. Because /theta/ is represented by the /theta/----/f/ substitution pattern in both adult Black English and emerging phonology of standard English, its acquisitional form in the phonology of Black English speaking children has particular implications for acquisitional theory and the applied clinical domain. Thus, sequential developmental stages for the acquisition of word-final /theta/ are proposed in this study and clinical implications discussed.
对1至4年级说黑人英语和标准英语的儿童进行了词尾/θ/的发音和感知评估。这两个方言群体在词尾/θ/的发音上有显著差异，但在感知上没有差异。在四个年级水平上，两组在辨别和识别任务上具有可比的感知表现，这表明尽管发音形式存在差异，但两组对/θ/的感知掌握程度相当。各自成人方言形式的发音，即标准英语中的/θ/和黑人英语中的/θ/----/f/，先于感知掌握。由于/θ/在成人黑人英语和标准英语的新兴音系中都由/θ/----/f/替代模式表示，因此其在说黑人英语儿童音系中的习得形式对习得理论和应用临床领域具有特殊意义。因此，本研究提出了词尾/θ/习得的顺序发展阶段，并讨论了其临床意义。
