On average, the patterns of classical singers required a larger number of Principal Components than untrained individuals, but the group difference narrowly missed statistical significance ( Table 2 , 2-way ANOVA–main effect for Group: F(1,9) = 4.74, p = 0.057).
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Breathing and Singing: Objective Characterization of Breathing Patterns in Classical Singers.
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0.0570
0.0570