Standardization of the Griffith Mental Development Scales for Children Aged 0~7 Years in the Cities of Shanxi Province / 中国心理卫生杂志

ABSTRACT

Objective: To revise the Griffith Mental Development Scales and establish the norm being suited to the Chinese local conditions. Methods: The standardized sample consisted of 2022 children aged 0 to 7 years old was collected in a stratified and random way according to city rank, age, sex, paternal occupations. Each subject was tested individually and filled in a form. Results: The total sample had better representation. The mean of GQ was about 100, and the distribution of GQ is normal. Item analysis indicated that the item difficulty was about 0.5 and discrimination was from 0.62 to 0.78. A few orders of items were revised. The scorer reliability was 0.953. The test-retest reliability was 0.948. The correlation coefficients were 0.481 to 0.854 among the sub-scales or between sub-scales and General DQ. The result of exploratory factor analysis had three factors. The ratio of variance was 79.8%.Conclusion:Griffith Mental Development Scales have ideal reliability and validity.