Abstract: Education is a global phenomenon and a key factor in the improvement of an individual, an
organization and economic growth and development. Therefore Improving school effectiveness and
performance has become fundamental development goal of every country. This present study
examines the direct impact of predominant leadership styles on school couture and school
performance as well as the indirect channels through which these leadership styles contribute to
school performance. A total sample size of 500 respondents which comprised teachers, headmasters
and assistant headmasters in the selected senior high schools in the Kumasi Metropolis in the Ashanti
region in Ghana. The Partial Least square Structural Equation Modeling (PLS-SEM) approach was
used for the data analysis with Smart PLS computer software version 3.0. The findings from the
study showed that, Instructional, transactional, and the transformational leadership styles are the
predominant leadership styles employed by the heads of the public Senior High Schools in the study
area. The Results demonstrate that, instructional, transactional, and the transformational leadership
styles have statistically significant and positive direct impact on school culture and school
performance. Further, school culture was utilized as mediating variables which play a statistically
positive significant partial mediating effect in the relationship between the leadership styles and
school performance. Based on the findings, it is recommended that, educational leader s in the
various educational institutions should employ more of transformational leadership styles and should
also focus on improving school culture in order to improve school performance |