Abstract
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.

Key words: Certified, Uncertified, Statistical tools (SPSS, Microsoft Excel), Construction Project Managers, Demographic profiles, Nigerian Construction Industry, Recommendations.