PPT Slide

• Sensory defects

• General physical condition

• Conditions of observation

• Quality/duration of observation

• Expertise/allocation of attention

• Sensory bias

• Expectancies

• Objectivity bias

• Memory-related factors

• Honesty

• Misconduct

• Outside influences/corruption

• Testimonial bias

• Demeanor and bearing

• Truth

Observational

instructions and

objectives

• Stakes, motives, interest

• Self-contradiction

• Contradictions

• Conflicting evidence

• Prior inconsistencies

Tests of testimonial credibility (Schum)

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