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SECREFHNOFORN !U! (U) Appendix B: Confidence in Assessments and Judgments Based on a Body of information (U) Confidence levels reflect the quality and quantity of the source information supporting judgment. Consequently,the FBI aseribes high.medium, or low kevels of confidence to assessments, as follows: (U) High confidence generally indicates the IBt's judgments are based on high quality intormation from multiple sources. High confidence in a judgment does not imply the assessment is a fact or a certainty; such judgments might be wrong. While additioral reporting and information sourees way change analytical judgments. such changes are mrosi likely to be relinemenls and not sabstantial in nature (U) Medium confidenee generafly means the information is eredibly sourced and plausible but not of sufficient quality or corruborated sufficiently to warrant a higher level of confidenee. Additional reportnng or information sources have the potential to increase: the FBi's contidence levels or substantively change analytical judgments. (U) Low confidence generally means the infomation's credibility or plausibitity is uncenain. the informatior is too fragmented or poorly corroborated to nake solid analytik: infarences, or the reliability of the sources is questionable. Absent additionai reporting or information sources. analytical judgments should be considered preliminary in natre SECRETNOFORN 1370340-98