THE MARBLE‐DROP TECHNIQUE: A PROCEDURE FOR GATHERING SENSITIVE INFORMATION
研究了一种投票技术在收集敏感信息时减少非抽样误差的效果，发现其比传统访谈更准确，与随机应答技术精度相当。
This study investigates the efficiency of a ballot technique in reducing bias caused by nonsampling errors in studies designed to gather sensitive information. Findings reveal that the technique produces population estimates more accurate than conventional interviewing and as accurate as the randomized‐response technique.