Table 4.
Summary of the mixed-design analysis of variance vibratory measures from high-speed videoendoscopy.
| Measure | OQw
|
SQw
|
PA |
AA |
||||
|---|---|---|---|---|---|---|---|---|
| Effect | F | p | F | p | F | p | F | p |
| Group (G) | 3.70 | .07 | 3.38 | .08 | 5.89 | .56 | 8.32 | .76 |
| Glottal region (GR) | 19.47 | 1.7e-5* | 0.29 | .75 | 21.14 | .74 | 3.98 | .87 |
| GR × G interaction | 1.48 | .24 | 2.74 | .08 | 2.31 | .35 | 5.43 | .21 |
| Condition (C) | 5.41 | .009* | 1.08 | .40 | 7.54 | .21 | 7.32 | .41 |
| C × G interaction | 0.53 | .59 | 0.16 | .85 | 1.21 | .93 | 8.34 | .35 |
| C × GR interaction | 2.86 | .030* | 0.09 | .98 | 2.87 | .78 | 5.74 | .75 |
| C × G × GR interaction | 0.51 | .73 | 0.85 | .49 | 0.53 | .75 | 5.42 | .91 |
Note. The effects of group (categorical factor), glottal region (anterior, middle, and posterior; within-subject factor), condition (baseline, Lombard, and recovery; within-subject factor), and the corresponding interactions are presented. Statistically significant effects are denoted by asterisks (*; α = .05). The degree of freedom for the F tests was 1. OQw = width-based open quotient; SQw = width-based speed quotient; PA = phase asymmetry; AA = amplitude asymmetry.