What question did this study set out to answer?

This research aims to develop and validate a speech processing task system to assess children with and without speech sound disorders.

February 8, 2026

Development and Validation of a Korean (L1)–English (L2) Speech Processing Task System for Children with and without Speech Sound Disorders

Puntos clave

This research aims to develop and validate a speech processing task system to assess children with and without speech sound disorders.
Developed a Speech Processing Task system based on psycholinguistic models.
Included ten subtasks for evaluating various stages of speech processing in both Korean and English.
Conducted expert panel reviews and calculated content validity and internal consistency using Cronbach’s α.
Applied the system to typically developing children to analyze performance based on task type and language.
All subtasks showed high content validity (CVR > 0.80, CVI > 0.90) and strong internal consistency (α = 0.779–0.912).
Performed repeated-measures ANOVA indicated significant effects of language and task type on performance.
Participants performed better on Korean tasks than on English tasks, except for the Discrimination Task.
Performance on the Input Phonological Awareness Task and Nonword Repetition Task was relatively lower than on other tasks.

Resumen

Introduction: Children with speech sound disorders (SSDs) often display heterogeneous underlying processing profiles that are not fully captured by conventional articulation assessments. To address this limitation, this study developed a computerized Speech Processing Task (SPT) system designed to evaluate multiple psycholinguistic processing stages such as speech perception, phonological awareness, representation, and motor programming. Methods: The SPT system was designed based on a psycholinguistic speech processing model and included ten subtasks: Discrimination Task (DT), Input Phonological Awareness Task (IPAT), Phonological Representation Task (PRT), Output Phonological Awareness Task (OPAT), and Nonword Repetition Task (NRT), administered in both Korean (L1) and English (L2). The system was computerized to facilitate automated scoring and analysis. Study 1 focused on item development and system implementation. Study 2 evaluated the content validity and internal consistency of the system using expert panel review and Cronbach’s α. Study 3 applied the SPT to typically developing children to examine their performance by task type and language. Results: All subtasks demonstrated satisfactory content validity (CVR > 0.80, CVI > 0.90) and high internal consistency (Cronbach’s α = 0.779–0.912). A repeated-measures ANOVA revealed significant main effects of language and task type, as well as a significant interaction between the two. Overall, participants showed higher performance on Korean tasks than on English tasks, with the exception of the DT. Among the subtasks, performance on the IPAT and NRT was relatively lower than on the other tasks. Conclusion: The SPT system showed strong validity and reliability, effectively capturing language and task-related differences in speech processing. By enabling parallel assessment in Korean and English, it offers a useful framework for profiling individual processing abilities and has potential applications in both research and clinical settings.

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Cite This Study

Kim et al. (Thu,) studied this question.

synapsesocial.com/papers/698827b40fc35cd7a88469a7 https://doi.org/https://doi.org/10.1159/000550857

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