Generation and the subjective feeling of "aha!" are independently related to learning from insight.

Here we found that the generation effect was significantly higher than the aha effect in solving old items during testing [ t (19) = 4.40, p < 0.001, Cohen’s d = 1.457], whereas—although descriptively double the size—only showing a trend towards significance in recognizing old items [ t (19) = 1.54, p = 0.141, Cohen’s d = 0.442].

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The descriptive difference even showed a trend for the opposite.

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