Eldredge J D
School of Medicine, University of New Mexico, Albuquerque 87131-5686, USA.
Bull Med Libr Assoc. 1998 Oct;86(4):496-503.
To test three related hypotheses about monographs circulation at academic health sciences libraries: (1) Juran's "Vital Few" Principle, sometimes incorrectly referred to as the "Pareto Principle"; (2) most (> 30%) new monographs will not circulate within four years; and, (3) Trueswell's 20/80 rule concerning intensity of monographs circulation.
Retrospective circulation study conducted at a major academic health sciences library in November 1997 on monographs acquired during 1993, utilizing an online review file.
Unexpectedly, most monographs (84%) had circulated at least once in the four years following acquisition. Combining circulation and in-house data revealed that 90.7% of the monographs acquired in 1993 had been used at least once. Small percentages of these monographs produced disproportionately high circulation levels.
Monographs circulation rates confirm Juran's Vital Few principle. Most monographs circulated at least once in contrast to results reported by the Pittsburgh Study or other studies reported by Hardesty and Fenske. The results do not comply with Trueswell's 20/80 ratio rule. Further research needs to investigate the effects of low students to books ratios and problem-based learning (PBL) curricula upon monographs utilization.
检验关于学术健康科学图书馆专著流通的三个相关假设：（1）朱兰的“关键的少数”原则，有时被错误地称为“帕累托原则”；（2）大多数（>30%）新专著在四年内不会被流通；以及（3）特鲁斯韦尔关于专著流通强度的20/80规则。
1997年11月在一家主要的学术健康科学图书馆利用在线检索文件对1993年获取的专著进行回顾性流通研究。
出乎意料的是，大多数专著（84%）在获取后的四年内至少被流通过一次。结合流通数据和馆内数据显示，1993年获取的专著中有90.7%至少被使用过一次。这些专著中一小部分产生了不成比例的高流通量。
专著流通率证实了朱兰的“关键的少数”原则。与匹兹堡研究或哈迪斯蒂和芬斯克报道的其他研究结果相反，大多数专著至少被流通过一次。结果不符合特鲁斯韦尔的20/80比率规则。进一步的研究需要调查低学生与图书比例以及基于问题的学习（PBL）课程对专著利用的影响。
