Eval Lifejacket Donning Instructions !full! Info

Reviewed instructions from three typical sources: illustrated placard (airline seatback), text-only brochure (marine), and video demonstration (online safety briefing). Evaluation criteria: sequence logic, visual communication, common misinterpretations, and time to correct wear.

: Use a diverse group of test subjects (varying height, weight, and gender) rather than a "pool" of professional volunteers to avoid "familiarity bias" [7, 23]. Environment eval lifejacket donning instructions