The Lost-Letter Technique

The Lost-Letter Technique is a research method used in social sciences to gauge public attitudes or opinions indirectly. Researchers intentionally "lose" sealed letters addressed to specific individuals or groups in public places. These letters often contain messages or questionnaires related to sensitive topics. Since people who find and return the letters are likely to be genuinely interested or sympathetic, the responses provide insight into societal attitudes without the biases that might occur with direct questioning. This technique helps researchers understand genuine opinions on controversial or delicate subjects in a natural, unobtrusive way.