For criminal justice decision-makers who wish to consider this knowledge in making prosecutorial, sentencing, or parole decisions, the magnitude of that association must be established while controlling for the effects of other variables known to be associated with recidivism (e.g., prior criminal record). This research addresses this issue using data from a large sample of federal prison releasees. The results indicate that recidivism rates do decline with increased age, and that the association is not diminished when statistical control is exercised for the effect of prior criminal record. (Author abstract)