Olson B K
JOGN Nurs. 1981 Mar-Apr;10(2):104-7. doi: 10.1111/j.1552-6909.1981.tb00842.x.
One hundred women patients at a midwestern university health center were randomly assigned to a control or experimental group to measure statistically comfort levels of new foot supports vs. traditional metal stirrups during pelvic examinations. Written comments were also obtained. Analyses using the t test demonstrated a significant positive change in attitude in the experimental group.
在中西部一所大学健康中心的100名女性患者被随机分配到对照组或实验组，以统计测量在盆腔检查期间新型足部支撑与传统金属马镫相比的舒适度水平。还收集了书面评论。使用t检验进行的分析表明，实验组的态度有显著的积极变化。
