Table 3. Concurrent correlations between insomnia symptoms, anxiety, depression and perfectionism at baseline and follow-up.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. ISI | − | .55** | .49** | .17 | .22 | .04 | .02 | .03 | .03 | -.04 | -.18 | .12 |
| 2. Anxiety | .51** | − | .61** | .41** | .52** | .21 | .36** | .17 | .20 | .32* | -.02 | .42** |
| 3. Depression | .55** | .62** | − | .33** | .44** | -.02 | .25 | .04 | .15 | .22 | .03 | .19 |
| 4. CM | .14 | .35** | .30** | − | .60** | .61** | .62** | .21 | .69** | .64** | .40** | .82** |
| 5. D | .26* | .39** | .28* | .60** | − | .38** | .55** | .32* | .45** | .47** | .17 | .50** |
| 6. PE | .14 | .19 | .13 | .63** | .40** | − | .50** | .19 | .65** | .51** | .32* | .73** |
| 7. PC | .29* | .34** | .35** | .67** | .49** | .59** | − | .07 | .37** | .24 | .17 | .58** |
| 8. ORG | -.01 | .11 | .14 | .26* | .37** | .18 | .04 | − | .38** | .44** | .44** | .27* |
| 9. PS | -.04 | .23* | .18 | .75** | .55** | .50** | .43** | .43** | − | .80** | .53** | .69** |
| 10. SOP | -.10 | .23* | .13 | .65** | .55** | .40** | .35** | .46** | .72** | − | .48** | .64** |
| 11. OOP | -.21 | -.02 | -.06 | .43** | .31** | .39** | .16 | .19 | .44** | .50** | − | .37** |
| 12. SPP | .08 | .30** | .14 | .78** | .50** | .75** | .59** | .11 | .58** | .59** | .46** | − |
Notes
Baseline (n = 76) correlations are displayed below the diagonal; follow-up (n = 57) correlations are displayed above the diagonal.
ISI, Insomnia Severity Index; CM, Concern Over Mistakes; D, Doubts About Action; PE, Parental Expectations; PC, Parental Criticism; ORG, Organization; PS, Personal Standards, SOP, Self Oriented Perfectionism; OOP, Other Oriented Perfectionism; SPP, Socially Prescribed Perfectionism.
*Significant for p-level < .05.
** Significant for p-level < .01.