The abundance of student records housed in K-12 schools across the country represents a largely untapped resource in the study of behavioral phenomena among children. Careful review of these existing records affords educational researchers an alternative to the heavily used survey method of data collection. While record review studies are common in medical research, scant evidence of their application in educational research can be found in the literature. This paper details the unobtrusive nature of the retrospective record review (RRR) as a method that yields insight into the behavioral patterns of children. This article highlights the design, limitations, and possible misuse of RRR research in a school setting.