| Sumario: | 3 studies investigated visual pattern variability and numerosity as variables determining expressed preferences. In Study I, pattern variability and numerosity were positively correlated. The Ss showed an age-invariant preference for the most numerous (and variable) patterns. In Study II, pattern variability and numerosity were negatively correlated. The Ss showed an age-invariant preference for redundant (i.e., less variable), but more numerous dot patterns. In Study III, numerosity was held constant while pattern variability varied. Preferences among young Ss showed considerable variability. In general, children preferred more redundant patterns. Beginning with adolescence, Ss' preferences tended to converge on patterns of intermediate variability. It was suggested that preference among younger and older Ss was determined primarily by pattern numerosity, while older Ss responded to pattern variability under some conditions.
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