The primary goal of this study was to replicate and improve upon a previous study of LA's BEST participants' secondary school persistence (or dropout) in light of the program's expansion. Specifically, analyses sought to answer the following research questions: - How do the participants and non-participants compare in regards to their demographics? Are there differences based on dosage in the LA's BEST program? - How do the participants served in LA's BEST program sites compare to nonparticipants in their persistence (or dropping out) in school? Are there differences based on dosage in the LA's BEST program? - How do participants served in LA's BEST program sites compare to non-participants in regards to their high school graduation? Are there differences based on dosage in the LA's BEST program? (author abstract)