The old Digest Group Traveller rules had something that might help with your false positive case. Some tasks were marked as "uncertain". Here's the rules as written (except I simplified the table):
Uncertain Task: If the result of a task attempt is largely "opinion" or, because of the nature of the task, if immediate feedback on how successful the task has been is not possible, then declare the task to be uncertain. With an uncertain task, those associated with the task have some idea of how successful the task attempt was, but they are not certain.
When a player is attempting an uncertain task, both the player and the referee roll for the task attempt. The referee's roll is hidden from the player, and serves to modify the result of the player's roll.
If both rolls failed: No Truth If one roll succeeded: Some truth If both rolls succeed: Total Truth
No Truth: The player is totally misled as to the success of the task attempt. Completely erroneous information is given.
Some Truth: The player is given some idea of the success of the task attempt. Some valid information is given. Notice that it is possible for the character to fail at the task attempt and still get some helpful information -- although he can not know for sure this is the case.
Total Truth: The player is not misled in any way as to the success of the task attempt. Totally valid information is given. Notice the player may still not believe all of the information he is given, even though it is the complete truth.
Conceptually, that's very handy for interpersonal skills.
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Date: 2008-03-05 03:38 am (UTC)Conceptually, that's very handy for interpersonal skills.