From personal experience I think this is right on the money. When I wrote the Goal Setting for Students book I kept the highest three concepts - discussed with others, experienced personally and teach to others - always in my mind.
10% of what we READ
20% of what we HEAR
30% of what we SEE
50% of what we SEE and HEAR
70% of what is DISCUSSED with OTHERS
80% of what is EXPERIENCED PERSONALLY
95% of what we TEACH TO SOMEONE ELSE