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. 2022 Aug 5;65(8):2881–2895. doi: 10.1044/2022_JSLHR-21-00508

Table 2.

Summary of the mixed-design analysis of variance for the acoustic and aerodynamic measures.

Measure ΔSPL
ΔACFL (ml/s)
ΔMFDR (L/s2)
ΔOQf (pp)
ΔSGP (cm H2O)
Effect F p F p F p F p F p
Group (G) 3.83 .06 18.65 .001* 15.60 .042* 2.11 .15 0.06 .81
Diff between conditions (DC) 102.00 1.5e-5* 68.68 .002* 124.50 .021* 14.38 .001* 30.15 .004*
G × DC interaction 7.90 .028* 0.29 .59 0.49 .59 1.89 .17 0.07 .79

Note. The effect of group (categorical factor), the difference between conditions (Diff between conditions, within-participant factor), and the interaction between factors (G × DC interaction) are presented. Statistically significant effects are denoted by asterisks (*; α = .05). The degree of freedom for the F tests was 1. SPL = sound pressure level; ΔACFL= difference in peak-to-peak airflow; ΔMFDR = difference in maximum flow declination rate; ΔOQf = difference in flow-based open quotient; ΔSGP = difference in subglottal air pressure.