Table 1.

Summary of original studies and replication results

Name of replication attempt (authors of original study)	Summary of original studies	Summary of replication and extension attempts of original studies
Replication 1: Age at first use (Palmer et al., 2010)	In a sample of 309 college student drinkers, researchers found a significant indirect association of age at first use on both alcohol-related outcomes (i.e., typical drinks per week and alcohol-related problems) via PBS use.	We replicated the indirect association of age at first use on both alcohol-related outcomes (i.e., alcohol use, alcohol-related problems) via PBS use.
Replication 2: Self-regulation (D’Lima et al., 2012)	In a sample of 249 first-year college students, researchers found support for what they termed the “self-control equals drinking control” hypothesis such that the protective association between self-regulation and alcohol-related problems was partially explained by PBS use.	We replicated the total, direct, and indirect associations of self-regulation on alcohol-related problems in both the freshman sample (replication sample) and in a sample of college student drinkers across all years of college. Further, we found that self-regulation did have a significant indirect association on alcohol use via PBS use (extension).
Replication 3: Impulsivity-like traits (Pearson et al., 2012b)	In a sample of 278 college student drinkers, in separate models, researchers found that Manner of Drinking PBS use was a significant (or “marginally” significant) mediator of the associations of each impulsivity-like trait on alcohol use; double mediation through Manner of Drinking PBS use and alcohol use on alcohol-related problems was also observed. In a combined model in which other impulsivity- like traits were controlled, premeditation, perseverance, and sensation seeking were each significantly associated with PBS use, which in turn was associated with alcohol outcomes.	Consistent with Pearson et al., we found that Manner of Drinking PBS use was the most consistent mediator of the associations of impulsivity-like traits on alcohol-related outcomes. Within a combined model, the indirect associations of Premeditation and Sensation Seeking on alcohol use via Manner of Drinking PBS use, the indirect association of these two traits on alcohol-related problems via Manner of Drinking PBS use, and the indirect association of these two traits on alcohol- related problems via Manner of Drinking PBS use and alcohol use (i.e., double-mediated association) remained statistically significant when other impulsivity traits were controlled for.
Replication 4: Depressive symptoms (Martens et al., 2008)	In a sample of 686 college student drinkers, researchers found a significant indirect association of depressive symptoms on alcohol- related problems via PBS use, while controlling for consumption.	We replicated the indirect association of depressive symptoms on alcohol-related problems via PBS use. Further, we found that depressive symptoms did have a significant indirect association on alcohol use via PBS use (extension).
Replication 5: Conscientiousness (Martens et al., 2009)	In a sample of 186 college student drinkers, researchers found a significant indirect association of conscientiousness on both alcohol use and alcohol-related problems via PBS use.	We replicated all of the significant direct and indirect associations of conscientiousness on alcohol-related problems. Further, we found that conscientiousness did have a significant indirect association on alcohol use via PBS use (extension).

Note: PBS = protective behavioral strategy.