From the Introduction: "Criminal history plays a pivotal role in determining an offender's sentencing range under the guidelines. Courts calculate a criminal history score for each offender by assigning one, two, or three points to any qualifying prior sentences. In addition, if the offender committed the instant federal offense while still serving a sentence in another case (for example, while on probation or parole), two more points are added. These additional points, outlined in §4A1.1(d), are commonly referred to as 'status points.' In 2005, the United States Sentencing Commission examined status points as part of a broader analysis of how well the guidelines' criminal history computation predicts recidivism. This report revisits status points with greater focus and examines their application and significance. The report begins by outlining how criminal history is calculated under the guidelines and by reviewing prior Commission research on the association between criminal history and recidivism. The report then examines how many offenders received status points in the last five fiscal years and compares them to offenders who did not receive status points. Next, the report analyzes the rearrest rates for offenders with and without status points who were released from prison or began a term of probation in 2010. Finally, the report considers how much status points contribute to the criminal history score's prediction of rearrest."
U.S. Sentencing Commission: https://www.ussc.gov/