Developing of The Causal Relationship Model of Factors Affecting Educational Quality of Primary Schools in Phetchaburi Province.

The aim of this paper is to develop and confirm the causal relationship model of factors affecting educational quality of primary schools. The quality of school education is an important product that represents the future of the nation and influenced by the theory of administrators’ leadership, teacher leadership, and school culture. The sample used in this research were  obtained by multi-stage random sampling from 138 elementary schools (According to the Krejcie & Morgan (1970: 607-610) sample size table. The respondents in schools consisted of 430 teacher (132 school administrators, 138 academic teachers and 160 teachers). The research instrument was 1 questionnaire that with the reliability of 0.98. The statistics used for data analysis were mean, standard deviation, kurtosis, skewness, Pearson's product moment correlation coefficient, and structural equation analysis with LISREL (8.80 student edition) program. The findings show that: 1) administrators’ leadership variables Influence through teacher leadership, and school culture on the quality of education of the school, 2) Teachers' leadership variables directly and indirectly affected through school culture variables on school quality variables, and 3) School culture variables directly affected on school quality variables