关键词: 分类, 材料呈现方式, 初中生, 大学生

Abstract: In all,120 subjects including junior middle school students and undergraduates from Yancheng city,whose eyesight and intelligence were normal,were randomly selected and participated in this experiment.The stimuli materials were consisted of 50 perceptually different pictures which were divided into 3 sets (a、b、c).The stimuli materials were presented in 3 conditions (A、B、C),and on the base of subjects' performance and explanation,the dependent variables were the results of classification based on single-dimension characteristics,whole similarity,two-phrase strategy and other strategies.The experiment design included within-subjects and between-subjects,in which each of the 3 sets of stimuli materials and each of 3 present conditions took turns.The χ²-test was performed on the datum with SPSS8.0 for windows.The results showed: (1) The stimuli-presenting modes had greatly significant effect on undergraduates' classification,but made no significant effect on junior middle school students.(2) Under B and C conditions,The results of classification between junior middle school students and undergraduates was significant,but under A condition there was not significant difference with junior middle school students and undergraduates.(3) The perceptual characteristics of stimuli had no significant effect on subjects' classification.

Key words: classification, stimuli-presenting mode, junior middle school students, undergraduates