청각장애 영유아 의사소통 발달척도 개발을 위한 예비연구: 신뢰도와 타당도를 중심으로

다국어 초록 (Multilingual Abstract)

Purpose : This study explored the validity and reliability of a new comprehensive assessment tool, Infant-Toddler Developmental Scales for Auditory Communication (IT-DSAC), which was developed to assess the developmental stages in listening, language, speech, and communication in infants and toddlers with hearing impairments.
Methods : Nineteen infants and toddlers (11 boys and 8 girls, mean age 23 months) with hearing difficulties participated in this study. Two certified speech-language pathologists (SLPs) with degrees and over 20 years of clinical experience answered the survey for content validity. Three certified SLPs, who specialized in aural rehabilitation, separately assessed the participants to obtain inter-rater reliability and criterion validity. Criterion validity was derived by comparing the Infant-Toddler Meaningful Auditory Integration Scale(IT-MAIS), the Sequenced Language Scale for Infants (SELSI), and the Stark’s Babbling Scales test results to those of corresponding IT-DSAC domains. Additionally, the relationship between hearing thresholds and IT-DSAC scores were analyzed. For reliability, all the participants were assessed twice within a month to avoid any maturation effects. Intraclass Correlation Coefficient (ICC) was used for inter-rater reliability.
Results : The Content validity results for age appropriateness and domain appropriateness were 91.5% and 95.9%, respectively. All IT-DSAC domains showed statistically significant criterion validity (p<.01) and good and satisfying inter-rater reliability (ICC>.70). The hearing thresholds of the participants correlated with the scores of Sound Response, Listening Skills, Receptive and Expressive Language, and Speech Production, but not with the scores of Oral Motor, Social Interaction, and Cognitive Communication.
Conclusions : IT-DSAC was designed to monitor progress in listening, language, speech, and communication, and this assessment tool was found to be a reliable and valid test.

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