Heaviness-brightness correspondence and stimulus-response compatibility.

Finally, when the effect of category brightness on response speed was assessed separately for the light and heavy response keys, the effect for the heavy key fell just short of significance, F (1,18.02) = 2.20, p = .15, η p 2 = .11, while the effect for the light-weight key was not significant, F (1,18.02) = .08, p = .77, η p 2 = .005.

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