Another limitation of the SRE is that it requires respondents to recall experiences that may have occurred many years in the past, or that in any case might be difficult to remember. Given the problems associated with accurately recalling alcohol use experiences (e.g., Del Boca & Darkes, 2003; Parra et al., 2003), it is likely that the retrospective reports queried by the SRE are less accurate than those related to more proximal experiences.