Spencer C C
Bull Med Libr Assoc. 1980 Jan;68(1):53-7.
The working time of reference librarians was sampled using random alarm devices and a structured checklist of mutually exclusive categories of reference questions. An average wage rate was applied to the unit time reciprocals derived from the resulting percentages. Wage costs for directional questions averaged $1.98; extended reference queries, $4.57. Random time sampling with self-observation gives acceptable reliability at low cost, minimal interference with service operations, and minimal distortion of collected data due to the collection process. It can be carried out by library managers themselves.
使用随机报警装置和一份由相互排斥的参考咨询问题类别组成的结构化清单，对参考馆员的工作时间进行了抽样。将平均工资率应用于从所得百分比得出的单位时间倒数。定向问题的工资成本平均为1.98美元；扩展参考查询为4.57美元。采用自我观察的随机时间抽样以低成本提供了可接受的可靠性，对服务操作的干扰最小，并且由于收集过程对收集的数据造成的失真最小。它可以由图书馆管理人员自己进行。
