본 연구는 한국형 유아 언어검사를 제작하기 위한 예비연구로서, 언어발달 영역을 수용 및 표현언어 등 2개 영역으로 구분하고, 3세 이전에 이루어지는 언어발달 문항들을 각 영역별 70개씩 총 140 문항을 선정하였다. 본 검사의 신뢰도와 타당도를 알아보기 위하여 영아전담어린이집 혹은 유치원에 다니고 있고 생활연령이 3세미만의 유아 총 136명(남 70, 여 66)을 대상으로 다음과 같은 통계분석을 하였다. 먼저 신뢰도를 알아보기 위하여 내적 일치도와 측정 표준오차, 그리고 검사-재검사 신뢰도를 분석하였는데, 연령별 하위검사의 일치도 계수는 .97 이상으로 나타나 하위검사 문항들이 동질적이고 신뢰로운 것으로 판명되었다. 또 하위검사의 검사-재검사 신뢰도는 부모가 평정한 경우 .94 이상으로, 교사가 평정한 경우 .91이상 나타나 모두 통계적으로 유의미하였다(p<.001). 한편, 내용타당도를 알아보기 위해 확인적 문항분석(confirmatory item analysis)을 실시하였는데, 각 영역별 문항의 point-biserial 상관계수가 몇 개의 문항을 제외하고는 아주 높게 나타났고, 각 하위검사의 중앙 계수도 모두 통계적으로 유의미하였다(p<.01). 또 구인타당도를 알아보기 위하여 하위검사간 상호상관을 알아보았는데, 각 하위검사간 상호상관은 .946으로 통계적으로 유의미하였다(p<.001). 이는 하위검사들이 서로 밀접하게 관련되어 있고, 각 하위검사의 문항들이 동일한 구성개념을 측정하고 있음을 시사해 준다.

This study was preliminarily executed to develop the Korean Scale assessing the level of language development for young children. Items were made up two domains of language development: receptive and expressive. Subjects were 136 young children(male 70, female 66) who have been committed to a day care center. For demonstrating the reliabilities of the scale, the internal consistency of the items was investigated to Cronbach's α and the Standard Error of Measurement(SEM). The reliability coefficients for the subtests were reached above .97 by age group. The SEM for the subtests of this inventory is approximately less than the score point 5. Also the test-retest correlation coefficients were reached above .94 in parent raters and above .91 in teacher raters and were all statistically significant(p<.001). Also a confirmatory item analysis was done for determining the validities. The median coefficients for each subtest were .785 in receptive and .795 in expressive, and were all statistically significant(p<.01). Also, the intercorrelation among its subtest was statistically significant(p<.001).

This study was preliminarily executed to develop the Korean Scale assessing the level of language development for young children. Items were made up two domains of language development: receptive and expressive. Subjects were 136 young children(male 70, female 66) who have been committed to a day care center. For demonstrating the reliabilities of the scale, the internal consistency of the items was investigated to Cronbach's α and the Standard Error of Measurement(SEM). The reliability coefficients for the subtests were reached above .97 by age group. The SEM for the subtests of this inventory is approximately less than the score point 5. Also the test-retest correlation coefficients were reached above .94 in parent raters and above .91 in teacher raters and were all statistically significant(p<.001). Also a confirmatory item analysis was done for determining the validities. The median coefficients for each subtest were .785 in receptive and .795 in expressive, and were all statistically significant(p<.01). Also, the intercorrelation among its subtest was statistically significant(p<.001).

language scale for young children, receptive and expressive language