The Statewide Investigation of Traumatic Brain Injury in Prisons (SITBIP) is a Centers for Disease Control and Prevention funded research project with three specific aims. The primary aim is to examine the relationship of recidivism and traumatic brain injury (TBI) among a population-based sample of inmates being released from South Carolina’s state prisons. The second aim is to estimate the prevalence of TBI, substance abuse, and violence in this sample and the third aim is to examine the validity of inmate report of TBI against SC hospital records. In order to fulfill these aims, 636 inmates in the SC Department of Corrections were interviewed. The interview contains numerous scales, many are complete scales that have been previously validated and published, some are parts of such scales, and some are original questions created specifically for this study. This paper’s purpose is to detail the scoring of these scales and questions, especially to inform readers of details unique to this sample and study. The questions used in the interview are in the SITBIP Data Codebook accessible at http://people.musc.edu/~pickelse/TBI_Prison_Study/SITBIP-Data_Codebook.pdf. It is very important for the reader to download the file and review the entire questionnaire.