College transfer students have been shown to have a high risk of attrition from their second institution, in part because of errors in judgment during course preregistration. Accordingly, the Admissions Office at the University of Maryland at College Park (UMCP) reviewed the proposed course registrations (for fall 1988) of a sample of transfer students who ended their first (spring 1988) semester at UMCP with an academic warning. A treatment group of 63 students were sent a letter during the summer of 1988 from a special advisor, listing recommendations for changes in the student's fall registration. For the following four semesters, the rates of academic persistence and grade point averages of this treatment group were compared with those of a comparison group of untreated transfer students. No statistically significant differences between the two groups was found on overall rates of persistence at UMCP, although students in the treatment group initially persisted at UMCP in higher numbers that the comparison group. Nor were there any statistically significant differences in academic standing. These findings suggest that such intervention by advisors in reviewing course preregistration and recommending changes needs to be followed up with other interventions, such as a diagnostic and prescriptive interview, in order to have any sustained effect on retention. (TE)