Objective Scoring System (OSS-3)

Product Code: OSS-3

OSS-3 is a manual numerical scoring method developed for evidentiary applications. It allows virtually perfect agreement among multiple scorers and it is possible to estimate accuracy from these scores. While the OSS-3 uses far fewer criteria for evaluating data than other systems, it requires scrupulous attention to the scoring protocol to deliver these advantages over traditional 7-position scoring. Not only is this second opinion important, but having an empirical foundation for the analyses that support your conclusion would go a long way toward your credibility in court.


  • Latest Version: OSS-3 version 1.1
  • For Windows 2000, Me, XP, Vista
  • Manual numerical scoring method
  • Developed for evidentiary applications
  • Warranty: One (1) year

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