Table 2.
Main and Interactive Effects of Distress Tolerance and Negative Affect Intensity in Relation to PTSD Symptoms
| Δ R2 | t | β | sr2 | p | |
|---|---|---|---|---|---|
| Criterion Variable: PDS—Total Score | |||||
| Step 1 | 0.149 | <.001 | |||
| ASI | 5.74 | 0.39 | 0.15 | <.001 | |
| Step 2 | .152 | <.001 | |||
| DTS | –2.73 | –0.21 | 0.04 | .007 | |
| AIM | 4.06 | 0.30 | 0.08 | <.001 | |
| Step 3 | 0.015 | 0.044 | |||
| DTS × AIM | –2.03 | –0.48 | 0.02 | 0.044 | |
| Criterion Variable: PDS—Re-Experiencing | |||||
| Step 1 | 0.134 | <.001 | |||
| ASI | 5.39 | 0.37 | 0.13 | <.001 | |
| Step 2 | 0.142 | <.001 | |||
| DTS | –2.00 | –0.16 | 0.02 | .047 | |
| AIM | 4.33 | 0.33 | 0.09 | <.001 | |
| Step 3 | 0.012 | .081 | |||
| DTS × AIM | –1.75 | –0.43 | 0.02 | .081 | |
| Criterion Variable: PDS—Effortful Avoidance | |||||
| Step 1 | 0.039 | .006 | |||
| ASI | 2.78 | 0.20 | 0.04 | .006 | |
| Step 2 | 0.075 | .001 | |||
| DTS | –1.27 | –0.11 | 0.01 | .204 | |
| AIM | 2.86 | 0.24 | 0.04 | .005 | |
| Step 3 | 0.000 | .806 | |||
| DTS × AIM | –0.25 | –0.07 | 0.00 | .806 | |
| Criterion Variable: PDS—Emotional Numbing | |||||
| Step 1 | 0.130 | <.001 | |||
| ASI | 5.30 | 0.36 | 0.13 | <.001 | |
| Step 2 | 0.075 | <.001 | |||
| DTS | –2.33 | –0.19 | 0.03 | .021 | |
| AIM | 2.18 | 0.17 | 0.02 | .031 | |
| Step 3 | 0.023 | .021 | |||
| DTS × AIM | –2.33 | –0.59 | 0.03 | .021 | |
| Criterion Variable: PDS—Hyperarousal | |||||
| Step 1 | 0.135 | <.001 | |||
| ASI | 5.42 | 0.37 | 0.13 | <.001 | |
| Step 2 | 0.170 | <.001 | |||
| DTS | –3.10 | –0.24 | 0.05 | .002 | |
| AIM | 4.14 | 0.31 | 0.08 | <.001 | |
| Step 3 | 0.013 | .057 | |||
| DTS × AIM | –1.91 | –0.45 | 0.02 | .057 | |
PDS Posttraumatic Diagnostic Scale; ASI Anxiety Sensitivity Index (total score); DTS Distress Tolerance Scale (total score); AIM Affect Intensity Measure (Negative Item total score)