Chambers D W, Eng W R
School of Dentistry, University of the Pacific, San Francisco, CA 94115, USA.
J Calif Dent Assoc. 1994 Dec;22(12):35-42.
This paper combines data from two surveys, one in 1986 and one in 1992, which used the same instrument. Practice problems, and responses to the problems, were found to differ according to the number of years in practice, validating a stage explanation of professional growth.
本文结合了两项调查的数据，一项在1986年，另一项在1992年，这两项调查使用的是相同的工具。研究发现，实践问题以及对这些问题的回答会因执业年限的不同而有所差异，这验证了关于职业成长的阶段解释。
