The effect of dimensional training on the mode of response of kindergarten children to two-dimensional stimulus materials was investigated by Kruskal-Shepard scaling and Procrustes rotation procedures. Twenty-two kindergarten children were used as Ss. The stimuli consisted of five cardboard rectangles varying on two dimensions of colour and size. From the five stimuli, ten triads were formed and presented to the Ss for similarity judgments. After training, the procedure was repeated. In the pre-training stage it was found that Ss were not dimensionalizing fully whilst in the post-training stage difficulties of interpretation resulted owning to what appeared to be individual styles. (Author)