This study investigates the influence of certified and uncertified construction project managers' impact on project success in the Nigerian construction sector, employing a quantitative and descriptive research design. Utilizing statistical tools such as SPSS and Microsoft Excel, data from 134 respondents underwent comprehensive analysis. The research explores demographic profiles, knowledge, skills, competencies, and project success criteria differences between certified and uncertified project managers. Demographic findings highlight a gender imbalance, predominantly male representation, and diverse age groups among project managers. Both certified and uncertified managers exhibit a robust understanding of project management principles, with certified managers showing a slightly higher proficiency. Certified project managers self-report higher skills, especially in communication and interpersonal areas. Evaluation of project success criteria, encompassing time, cost, quality, and stakeholder satisfaction, reveals no significant differences between certified and uncertified project managers. Barriers to project management standards adoption and certification include resistance to change as the most critical factor. Recommendations include enhancing education and training, promoting certification, strengthening regulatory frameworks, creating incentives for compliance, facilitating industry collaboration, and improving access to finance and infrastructure. Future research suggestions encompass in-depth analyses, longitudinal studies, industry-specific comparisons, regional disparities, qualitative assessments, and global benchmarking. This study contributes significant insights to both academia and industry, shedding light on the intricate project management dynamics in Nigerian construction sector.
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