The purpose of this study was to investigate the perceptions of the physics instructors, major-physics students, and nonmajor-physics students regarding actual teaching performance and effective teaching performance. The sample consisted of a total of 56 physics instructors, 120 major-physics students, and 120 nonmajor-physics students at eight public universities in Thailand. A total of 53 physics instructors or 94.64 percent, 101 major-physics students or 84.17 percent, and 107 nonmajor-physics students or 89.17 percent responded in this study. Multivariate analysis of variance, univariate analysis, one-way analysis of variance, and multiple regression were used in the follow-up assessment, with the .05 level of significance. The physics instructors, major-physics students, and nonmajor-physics students perceived actual teaching performance in class to be significantly different from effective teaching performance. The three groups rated actual teaching performance on every factor to be less than sffective teaching. There was a significant difference between the physics instructors' perceptions and the major-physics students' perceptions regarding actual teaching performance, and also there was a significant difference between the physics instructors' perceptions and the nonmajor-physics students' perceptions regarding actual teaching performance. However, there was no significant difference between major-and nonmajor-physics students' perceptions regarding actual teaching performance. There was no significant difference among …

The Thai State Railway Authority (RSR) is a public enterprise in Thailand. As an organization its performance is subject to the argument of contingency theorists that operating efficiency is dependent upon various factors both in the internal and external environments of the enterprise. Most of the internal factors are those that organization theorists in the developed world have identified such as goals and objectives, resources, and organization structures. Meanwhile, external factors such as political, economic and social conditions of the society are regarded as indirect factors that have less importance than do the internal factors. Scholars of the developing world have argued that political, social and economic conditions in the society are as important as internal factors. These factors may have a very significant influence on the enterprises and on the society as a whole. Consequently, public enterprises in developing countries always encounter the same problem of operating inefficiency. The RSR is selected as a case study because of its advantages over the other public enterprises in Thailand in terms of size of operation, length of service, and data availability. For the purpose of this project, data are collected from 1960 to 1984 for longitudinal analysis. The methods of analysis …