Article
A Validation Study of the Gross Motor Scale of Korean Version of Bayley Scales of Infant and Toddler Development, Third Edition
| e-ISSN | 2671-4450 |
| p-ISSN | 1226-0134 |
| Received | 2018-04-30 |
| Revised | 2018-05-04 |
| Accepted | 2018-05-28 |
| DOI | https://doi.org/10.14519/jksot.2018.26.2.07 |
| Metrics | Views 0 / Downloads 0 |
Abstract
Objective: This study verified the psychometric properties of gross motor scale of Korean version of Bayley Scales of Infant and Toddler Development-Third Edition(K-Bayley-Ⅲ) through item analyses, validity, and reliability evidence. Methods: Date were obtained from a stratified sample of 1,764 infants and toddlers divided into 17 age groups, 16 days through 42 months 15days old, who reflected key demographic variables in the national population. Results: Firstly, the analysis of the degree of item difficulty indicated that items were appropriately placed in the order of difficulty. Most baseline items showed a 90% pass rate. Secondly, Inter-item consistency showed excellent levels and items were highly reliable in terms of test-retest reliability and inter-rater reliability. Thirdly, in terms of the construct validity, the Gross Motor Scale of K-Bayley-Ⅲ score revealed a high degree of correlation with the Motor composite score but a significant moderate correlation with the Language composite score, providing evidence of its convergent and discriminant validity. Conclusion: In this study, K-Bayley-Ⅲ gross motor scale was proved to be a valid and reliable measure for evaluating the development of gross motor in Korean infants.