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采用聚类分析法分析低、中、高年级弱智儿童对63种食物图片的自由分类,考察弱智儿童的概念联系及其发展。结果显示,低年级弱智儿童基本上没有分类标准,未形成有效的概念组织方式;中年级弱智儿童开始按照情景分类,概念之间具有SF联系;高年级弱智儿童主要依据相似性分类,概念之间构成分类学关系。弱智儿童的概念联系发展趋势与普通儿童相同,但发展速度和水平却大大落后于普通儿童。
Cluster analysis was used to analyze the free classification of 63 kinds of food pictures among the mentally handicapped children of low, middle and high grades to investigate the conceptual connection and development of mentally handicapped children. The results show that there is basically no classification standard for the mentally handicapped children in the lower grades and no effective way of concept organization is formed. The middle-aged mentally handicapped children begin to be classified according to the situations and have the SF connection among the concepts. The senior grade mentally handicapped children are mainly classified according to the similarities, Constitute a taxonomic relationship. The mentally handicapped children have the same trend of concept development as ordinary children, but the pace and level of development have lagged far behind that of ordinary children.