Doubts About the Role of Rehearsal in the Irrelevant Sound Effect.

Despite the limited sample size remaining in each independent strategy group, a repeated measures ANOVA on the Block 2 performance data, treating sound (quiet, IS) as a within-subjects factor and strategy (rehearsal, nonrehearsal) as a between-subjects factor, again confirmed a highly significant main effect of sound condition ( F (1, 24) = 10.591, p = .003, partial η 2 = .306), but provided no indication at all of a main effect of strategy ( F (1, 24) = 0.047, p = .831, partial η 2 = .002) or an interaction between strategy and sound condition ( F (1, 24) = 0.042, p = .393, partial η 2 = .002).

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