认知发展水平诊断工具IPDT北京市常模的制订

Establishment of the Norm of Inventory of Piaget's Developmental Task in Beijing

目的 :制定儿童认知发展水平诊断工具 (IPDT)的北京市常模 ,并对其心理测量学指标进行进一步的检验。方法 :以北京市 160 0名 7-14岁儿童为被试 ,进行了IPDT测验。结果 :( 1)IPDT测验总分随儿童年龄增长而提高 ,表现出良好的构念效度 ;( 2 )其中的 18个子测验难度从易到难呈梯级分布 ,整个测验的平均难度系数为 0 5 ,难度指标比较理想 ;( 3 )测验具有良好的区分度 ;( 4 )测验分数的负偏态分布特征表明该测验适合于诊断 ;( 5 )根据测试结果建立了北京市 7-14岁儿童的百分等级常模以及诊断标准 ,并对测验的性质、用途和特点进行了讨论。结论 :IPDT适合于 7-14岁儿童的认知发展诊断。

Objective:To revise the norm of Inventory of Piaget's Developmental Task (IPDT), and to have a further test on the fitness of IPDT.Method:1600 children aged from 7 to 14 in Beijing participated the IPDT tests.Results:IPDT scale showed good construct validity, appropriate difficulty and discriminate ability. The norm of IPDT was compiled in the form of percentile rank, and the diagnostic indicators of children with cognitive delay were set up. The feature and function of IPDT were discussed, and suggestions for future research were provided.Conclusion:The results demonstrate that IPDT is suitable for demands of psychometrics and applicable in Chinese children.