Some limitations of this study include an inability to fully match low and high LR participant pairs on levels of alcohol use (which might have obscured LR-program interaction effects, although baseline alcohol use was controlled for), and control participants being selected from a parent study with somewhat different measures and assessment periods rather than being assessed as part of the prevention study. It is also possible that sampling bias influenced our results, as there were some differences between participants who volunteered for the prevention study compared to the larger university study in terms of demographics (more likely to be female and Caucasian) and alcohol use (participants drank slightly less and were less likely to meet criteria for alcohol dependence).
