The study tested two models on the interaction of teacher variables using Structural Equations Modeling (SEM). In the first model, the effect of teacher's personality characteristics and teaching efficacy on teacher's performance and effective teaching was tested. In the second model, the effects of learner-centered practices on teacher's performance, effective teaching, and teaching efficacy were included. 296 teachers from a community college were assessed by their students on their teaching performance using the Student Instructional Report (SIR), the Effective Teaching Inventory (ETI), and the Learner-centered Practices Questionnaire which were devised by the researchers. On the other hand, the teachers assessed themselves using Osgood's Personality Characteristics Scale and the Teacher Efficacy Inventory by Gibson and Dembo (1984). In the SEM analysis, the two models did not change on their measures of goodness of fit with a RMSEA of .045 indicating that both models have a rather good fit. It was found that the teachers practicing learner-centered approaches use their self-efficacy in order to be effective in teaching, but it was also found that being effective does not result in high teaching performance ratings. The use of learner-centered practices is seen as effective but does not warrant having high ratings based on student assessment. A teacher's general performance in teaching is influenced by various internal and external factors. These different teaching factors are measured and assessed in order to come up with indicators of successful teaching that would effectively regulate students' learning and serve as success indicators for a school. Various studies have proposed different criteria on how to assess teaching performance and they differ according to different schools' specific objectives. However, in explaining teaching performance, there are important common factors that need to be considered. Teacher performance is influenced by the teachers' personality characteristics (