over LR and related to future alcohol problems were entered along with LR into a single simultaneous entry regression analysis, with the result that only LR entered significantly, with R2 =.21, p=.008. Third, we noted the high correlations among the fMRI measures and the fact that when entered into a regression along with LR four ROIs incremented over LR in predicting alcohol outcomes, which raised the possibility that in simultaneous regressions the overlap between ROIs might disallow any one of them to enter as a significant contributor to the equation. Therefore, we carried out a backward elimination regression analysis to better determine which ROI values remained related to future alcohol problems. The results in Table 3 indicate that LR, ROI 2, and ROI 3 significantly contributed to the regression analysis, with R2 =.21, p=.001. The backward elimination ABE approach yielded the same model with R2 =.21, p=.001.
