Table 3.
Pearson correlation between change score for the ISI, working alliance, therapeutic relationship, credibility and expectancies.
| 1. | 2. | 3. | 4. | 5. | ||
|---|---|---|---|---|---|---|
| 1. ISI difference score | – | |||||
| 2. WAI-SR, subscale task | Correlation coefficient (r) | −0.208 | – | |||
| Significance (p) | 0.319 | |||||
| (df) | (23) | |||||
| 3. WAI-SR, subscale goal | Correlation coefficient (r) | −0.348 | 0.738 | – | ||
| Significance (p) | 0.088 | 0.000 | ||||
| (df) | (23) | (24) | ||||
| 4. Bern Post Session Report (mean score) | Correlation coefficient (r) | −0.583 | 0.484 | 0.677 | – | |
| Significance (p) | 0.001 | 0.012 | 0.000 | |||
| (df) | (25) | (24) | (24) | |||
| 5. Missed a real therapist (mean score) | Correlation coefficient (r) | 0.619 | −0.533 | −0.531 | −0.628 | – |
| Significance (p) | 0.001 | 0.005 | 0.005 | 0.000 | ||
| (df) | (25) | (25) | (24) | (26) | ||
| 6. CEQ | Correlation coefficient (r) | −0.428 | 0.726 | 0.707 | 0.614 | −0.613 |
| Significance (p) | 0.047 | 0.000 | 0.000 | 0.002 | 0.002 | |
| (df) | (20) | (20) | (20) | (21) | (21) |
Note: ISI = Insomnia Severity Index; WAI-SR = Working Alliance Inventory Short Revised; CEQ = Credibility Expectancy Questionnaire.