Information Technology (IT) governance has risen in importance in recent years, driven by various trends in IT development. With rapid growth in the country and the globalization of the IT sector, there is growing interest in IT governance in Malaysia. This paper aims to explore whether IT practitioners with different job functions, education levels, education areas of specialization, certifications and experience levels have different perceptions of IT governance effectiveness in their organization. The results reveal differences in perceived IT governance effectiveness between different job function groups, but not between groups with different education levels, certification or experience levels. The findings for education area of specialization are not conclusive.