Ludlow L H, Lunz M E
Boston College, School of Education, Chestnut Hill, MA 02467, USA.
J Outcome Meas. 1998;2(4):326-37.
The purpose of the present analysis was to determine the degree of invariance of the Job Responsibilities Scale from 1993 to 1995. Factor analyses were conducted on both year's data and nearly identical factor patterns were found. Rasch rating scale analyses were conducted and nearly identical pairs of item estimates were found. These results suggest that even though the overall frequency of performance on some medical technology laboratory tasks increased from 1993 to 1995, the relationships among the tasks themselves remained the same (invariant). This conclusion allows for a description of what it means to increase in level of personal job responsibility from year-to-year. In addition, these results suggest that at the conclusion of this prospective study it may be possible to objectively define the typical career mobility pattern of entry level medical technologists.
本分析的目的是确定1993年至1995年期间工作职责量表的不变程度。对这两年的数据进行了因子分析，发现因子模式几乎相同。进行了拉施量表分析，发现项目估计值对几乎相同。这些结果表明，尽管1993年至1995年期间某些医学技术实验室任务的总体执行频率有所增加，但任务之间的关系保持不变。这一结论有助于描述逐年个人工作职责水平提高的含义。此外，这些结果表明，在这项前瞻性研究结束时，有可能客观地定义初级医学技术人员的典型职业流动模式。
