COMPARATIVE ANALYSIS OF TEACHERS’ PROFESSIONAL PERFORMANCE BASED ON PORTFOLIO AND SELF-RELATIONSHIP
The article is devoted to the measurement and comparison on the linear scale of teachers’ professional performance based on portfolio and self-relationship. The study involved teachers of mathematics, history, Russian language and literature of all 36 schools of the Slavic region of Krasnodar Krai, 271 teachers in total. The teachers’ professional performance is considered as a latent variable, which is estimated through sets of indicators of questionnaires. The results of the survey are processed based on Rasch model, which made it possible to obtain estimates of teachers’ professional performance on a linear scale. Statistical analysis carried out within the framework of the theory of latent variables showed that the developed questionnaire based on self-relation can be used as a measuring tool. Comparison of estimates of teachers’ professional performance based on the portfolio and self-estimation was performed using analysis of variance. Correlation between these two sets of estimates is revealed. The ranking of teachers of mathematics, history, Russian language and literature turned out to be the same both based on the portfolio and on self-relationship. This confirms the validity of both questionnaires, based on the portfolio and self-relationship to measure teachers’ professional performance. Developed questionnaires can be used to assess the effectiveness of training courses and monitoring the teachers’ professional performance.