Abstract
Ratings of pattern goodness and of pattern preferences were made by 96 Brazilian subjects for each of 50 stimulus patterns of known pattern uncertainty. Equal numbers of male and female subjects were used in each of four age groups (9-10, 13-14, 17-18, 20-21). Ratings of pattern goodness were highly correlated with pattern uncertainty for all groups, with results very similar to those previously obtained with subjects in the United States. The youngest group showed more variability among patterns equivalent by reflection and/or rotation than did the older groups, consonant with the U. S. data. However, the two younger Brazilian groups showed even higher variability than the comparable U.S. subjects. The development of equivalency under such transformations occurred later for Brazilian as compared to U. S. students. Pattern preference was similar for all ages, and like that in the U. S., reflected preference for the least uncertain patterns.
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