Table 3. Correlations of PHQ-ADS, PHQ-9, and GAD-7 with Mental Health (Convergent Validity) and Quality of Life and Disability (Construct Validity) Measures *.
| Variable | PHQ-ADS | PHQ-9 | GAD-7 |
|---|---|---|---|
|
| |||
| Convergent Validity | |||
|
| |||
| PHQ-9 | |||
| SCOPE | .95 | -- | -- |
| ESCAPE | .94 | -- | -- |
| INCPAD | .89 | -- | -- |
| GAD-7 | |||
| SCOPE | .94 | .77 | -- |
| ESCAPE | .93 | .75 | -- |
| INCPAD | .86 | .54 | -- |
| PROMIS-ADS | |||
| SCOPE | .83 | .76 | .80 |
| SF Mental (MHI-5) | |||
| SCOPE | .83 | .78 | .78 |
| ESCAPE | .81 | .79 | .72 |
| INCPAD | .76 | .65 | .69 |
| SF MCS | |||
| SCOPE | .79 | .75 | .74 |
| ESCAPE | .82 | .81 | .73 |
| INCPAD | .67 | .60 | .57 |
|
| |||
| Construct Validity | |||
|
| |||
| SF Vitality | |||
| SCOPE | .69 | .63 | .50 |
| ESCAPE | .57 | .60 | .45 |
| INCPAD | .46 | .45 | .36 |
| SF Social | |||
| SCOPE | .62 | .60 | .57 |
| ESCAPE | .66 | .65 | .58 |
| Disability Days | |||
| SCOPE | .48 | .46 | .44 |
| INCPAD | .35 | .31 | .30 |
| Sheehan Disability Scale | |||
| INCPAD | .45 | .41 | .38 |
| Work Effectiveness | |||
| SCOPE | -.46 | -.47 | -.39 |
| ESCAPE | -.41 | -.34 | -.43 |
*
Values shown are Pearson's correlation coefficients