Three variables showed Treatment X Time interactions, either overall or in tests of contrasts. Scores on Behavioral Support for Abstinence increased in the two Network Support conditions from baseline through 15 months, whereupon scores in the NS+CM condition declined and scores in the CaseM condition rose minimally out to 27 months (see Figure 3, panel A). Attitudinal Support for Abstinence (panel B) followed a similar pattern. Although the overall Treatment X Time interaction was not significant, a significant Treatment contrast of NS v. CaseM did emerge, such that Attitudinal Support levels were higher over time for the NS conditions (see Table 1 and Figure 3, panel B). In the NS condition, the Number of Abstinent Friends in the Social Network increased through 15 months and then leveled off, but dropped at 15 months for those in the NS+CM condition. Figure 3, panel C, shows a significant Treatment X Time interaction, and a significant contrast of NS v. CaseM.
