The Influence Of Stimulus Properties And Presentation Method On Category Construction

Previous research indicates that people's preference for a unidimensional sort strategy in free classification is robust to substantial changes in stimulus procedures if an array procedure is used changes in stimulus procedures if an array procedure is used.So our study for In all, 160 subjects including undergraduates from south west normal university, whose eyesight and intelligence were normal, were randomly selected and participated in this experiment. The stimuli materials were consisted of perceptually difficult /simple and spatially integrated/separable, which were divided into 4sets.The stimuli materials were presented in 2 conditions (A.B),and on the base of subjects' performance and explanation, the dependent variables were the results of classification based con 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 4 sets of stimuli materials and each of 2 present conditions took turns. The X test was performed on the datum with SPSS 10.0 for windows. The results showed:l.The results of classification of subjects were different with while the difference varied with stimuli-presenting mode, under A conditions, people preference undimensional sort ,but under B people preference for family resemblance sort. But the match-to-standards procedure introduced by Regehr and Brooks(1995) dose not produce a universal preference for family resemblance sorts.2.Sort strategy was found to be highly sensitive to quite subtle changes in...