Recommendation
The following recommendations are made for future research into this topic:
Add more data, possibly more data from western countries, to the USA data, to compare more integrative leadership styles;
Acquire specific data on principals’ leadership styles (i.e. decision making process, school structure, and planning) from secular schools and Islamic schools in the USA; and
Research in Higher Education Journal
The effect of principles, page 15
Using TIMSS data, investigate more than one country in the Middle East to come up with a more general model.