e paper examines the merit of a small memory capacity on the detection and utilization of correlations within a multiple-variable environment that contained dummy variables. e participants were asked to predict a number 1 or 2 hidden within a gure with four features color, shape, size, and number on each trial. All features were binary variables, and only color was correlated with the hidden numbers. e results indicated that a small working-memory-capacity group performed better than a large

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... king-memorycapacity group, which suggests that a smaller working memory capacity is advantageous for detecting and utilizing correlations. is implies an adaptive advantage of a smaller memory capacity.