Table 4.
Group equivalence at treatment onset: Pretherapy or Session 1 values.
| Measure | MP4 Group (M ± SD) | Control Group (M ± SD) | t(df) | p |
|---|---|---|---|---|
| Voice Handicap Index | 44.65 ± 23.1 | 44.11 ± 25.0 | 0.31(33) | .76 |
| Consensus Auditory Perceptual Evaluation of Voice–V (pretherapy) | 17.53 ± 9.9 | 19.27 ± 12.3 | 0.41(26) | .69 |
| Readiness Ruler Item 1: overall self-efficacy for practice | 8.06 ± 2.0 | 7.72 ± 1.8 | 0.525(33) | .60 |
| Self-Efficacy scale, Section 1: self-regulatory self-efficacy for practice | 5.54 ± 1.7 | 5.73 ± 1.5 | 0.847(26) | .40 |
| Readiness Ruler Item 1: overall self-efficacy for generalization | 2.94 ± 2.8 | 3.44 ± 3.0 | 0.510(33) | .61 |
| Self-Efficacy scale, Section 1: self-regulatory self-efficacy for generalization | 4.34 ± 2.5 | 3.73 ± 2.7 | 0.684(33) | .50 |
| Goal Commitment scale (practice) | 4.42 ± 0.62 | 4.52 ± 0.45 | 0.54(33) | .59 |
| Readiness Ruler Item 2 and 3 average: goal commitment (practice) | 8.22 ± 2.3 | 8.31 ± 1.2 | 0.23(24.2) | .82 |
| Goal Commitment scale (generalization) | 3.87 ± 1.1 | 4.17 ± 0.75 | 0.85(26) | .41 |
| Readiness Ruler Item 2 and 3: goal commitment for generalization | 5.64 ± 3.7 | 5.28 ± 3.7 | 0.29(330) | .77 |
| Session Rating scale (therapeutic alliance) | 9.24 ± 0.8 | 9.05 ± 0.88 | 0.64(33) | .53 |
| Generalization (% target voice use) | 0.58 ± 2.4 | 3.33 ± 14.4 | 0.79(33) | .44 |