Use this when the user wants to compare two people's Big Five personality test results, e.g. friends, partners or siblings who both took the 50-item test. Takes each person's five raw scores (10-50) and returns per-trait differences (similar when 3 points or fewer apart), each person's percentile, a comparison card (SVG) and a comparison page. Describes differences only; it does not rate compatibility, predict relationships, or judge who is better. Do not use for hiring or team selection.