영유아기의 발달 중에서 청각의 발달은 태아기부터 구조와 기능이 형성되기 시작하여 의사소통 발달과 그 외 발달에 영향 을 미친다(Tait et al., 2007). 태아는 임신 8주에 청각기관이 구 조적으로 형성되기 시작하여 임신 20주경부터 해부학적으로 초 기 듣기 기능을 할 수 있도록 발달한다(Hall, 2000; Pujol & Lavigne-Rebillard, 1992). 태아는 자궁에서 골도로 듣게 되며, 양수의 진동을 통해 소리가 전달되어 1,000 Hz 이상의 소리는 20~30 dB 감쇄하여 듣게 되는데(Lecanuet et al., 1998), 이렇 게 태아기부터 들은 소리는 호흡의 변화, 심장 박동 수 변화, 안 구운동, 손가락을 빨거나 입을 우물거리는 행동 등으로 반응하 게 되는 것을 관찰할 수 있다.
Purpose: The objective of this study was to analyze the reliability and validity, and compare the Infant-Toddler Auditory and Communicative Behavioral Checklist (IT-ACBC) to general developmental levels of Korean Developmental Screening Test for infant & children (K-DST) for identifying characteristics of the checklist. Methods: IT-ACBC were administered by 287 parents of the normally developing infants aged from 1-26 months. After considering internal consistency reliability, frequency of response to each month group, and questions from respondents, 36 items, 3 items for 12 month groups, were finally extracted from the preliminary items. The internal consistency of items and test-retest reliability were calculated. The validity for items were conducted by attempting a concurrent validity analysis. Average and standard deviation of IT-ACBC was analyzed to standardize a criterion. The correlation between auditory and communicative behavioral ability of IT-ACBC and 6 general developmental skills of K-DST scores were obtained to identify their relationship. Results: The Cronbach’s alpha coefficient of IT-ACBC was 0.964. The test-retest reliability was quite high with r = 0.962. The score of the checklist was significantly correlated with ‘LittlEARS Auditory Questionnaire-Korean’ score. The score of the IT-ACBC was significantly correlated with the language score of K-DST (r = 0.426). Conclusion: IT-ACBC was developed and standardized scores were provided to evaluate auditory and communicative behavior in typically developing infants and toddlers. IT-ACBC can be utilized for checking auditory and communicative behaviors briefly. Further, IT-ACBC also can be utilized to assess auditory and communicative behaviors for multi-handicapped children comparing with other functions of K-DST.
INTRODUCTION MATERIALS AND METHODS RESULTS DISCUSSIONS REFERENCES
