Table 3. Unique Prediction of NSSI Frequency Over the 1-Year Follow-Up.
NSSI Frequency Between Baseline and 1-Year Follow-Upa | |||
---|---|---|---|
Baseline Predictors | β | t | p |
Lifetime NSSI frequencyb | −.65 | −2.06 | .046 |
Lifetime NSSI methods | .86 | 2.91 | .006 |
Recency of NSSI | −.21 | −1.69 | .098 |
Behavioral forecast of future NSSI | .19 | 1.39 | .171 |
MSI-BPD featuresc | .37 | 2.96 | .005 |
| |||
All Variables Entered Simultaneously R2 = .48, F(5, 45) = 7.94, p < .001, Cohen's f2 = 0.92 |
Follow-up NSSI frequency (between baseline and 1-year follow-up) was created by rank transforming each of the 12 NSSI behaviors (so that each behavior had the same mean) and then summing the 12 rank-transformed behavior scores to obtain a total frequency score.
Lifetime frequency of NSSI behaviors was created by rank transforming each of the 12 NSSI behaviors (so that each behavior had the same mean) and then summing the 12 rank-transformed behavior scores to obtain a total frequency score.
MSI-BPD features total score did not include the suicide/self-injury item.