英文摘要 |
This study aims to develop Inventory of Language Development for 0-6 Years Old Children (ILD), a parental report that can be used to assess the growth and change of language proficiency in children aged between 0 and 6 years old. Two versions of inventories were developed: a 0-2 years old version and a 2-6 years old version. The 0-2 years old inventory covers questions about pre-linguistic communication, language comprehension, language expression and emergent literacy, whereas the 2-6 years old inventory covers questions about language comprehension, language expression and emergent literacy. The procedure of developing the questionnaire includes three stages: preliminary test, pilot test, and formal study. In the formal study, 463 children aged from 0-6 were recruited from New Taipei City. The children's parents were asked to fill out the questionnaires and 158 children's language abilities were assessed using the Comprehensive Developmental Inventory for Infants and Toddlers. Results showed that the internal consistency reliability and retest reliability of the questionnaires were larger than 0.9 and 0.8 respectively, showing that the questionnaires had fairly good internal reliability and were quite stable in measuring children's language development. In addition, the confirmatory factor analysis (factor loading > 0.5), the correlation validity test (r = 0.61-0.82) and the discriminant analysis all indicated that the inventory had fairly good construct validity, criterion-related validity and discriminant validity. These results suggest that ILD provides correct and reliable assessment of language proficiency in children aged from 0-6 years old. |