When reviewing files, for the sake of accuracy, court systems systematically select a sample of cases. For example, it is not appropriate to select cases that happen to be easily accessible or that have moved through the court process relatively quickly. For statistical purposes, it is desirable, when possible, to review a sample of 100 or more files. Another useful self-assessment technique is direct observations of juvenile court proceedings. To analyze prehearing preparation of the parties, very brief supplemental interviews may be helpful.
Direct observations can be useful for caseflow management analysis.
Both the reasons for and frequency of continuances can be measured. In addition, the amount of time for different hearings can be recorded to help with later cost and personnel analysis. An alternative to first hand observation is to obtain and review transcripts of the hearings. Because the observer is not present during the hearings, this may provide a more accurate picture in some ways than first hand observation. This is most useful for analysis of brief hearings that are scheduled together such as review hearings.