The purpose of this study was to investigate the relationship among principal’s
transformational leadership, master teacher’s instructional supervisory activities, teacher
efficacy and teaching professionalism in questions.
Principal’s transformational leadership and master teacher’s instructional supervisory
activities had significant direct effects on teacher’s efficacy. However, the principal’s
transformational leadership and master teacher’s instructional supervisory activities did not
have significant effects on teaching professionalism. Also, principal’s transformational
leadership had stronger effects on teacher’s efficacy than effects on master teacher’s
instructional supervisory activities. Principal’s transformational leadership and master
teacher’s instructional supervisory activities had positive effects on teaching professionalism
for individual teachers when using teacher’s efficacy as a mediating variable.
To analyze directs effects of principal’s transformational leadership on teaching
professionalism, three groups of teachers were classified by their years of teaching
experience The result of this study showed that there was no significant effect on teachers
with less than 10 years of teaching experience. However, it was identified that there were
significant effects for teachers with between 10 and 20 years of teaching experience as well
as teachers with more than 20 years. Also, the analysis showed that the greatest total effects
of principal’s transformational leadership on teacher’s teaching professionalism were on
teachers with between 10 and 20 years of teaching experience.