Within a construction project, the clients are categorized as private individuals, private companies, public institutions, etc. In this research, the private client is identified as a non-professional individual building owner and is involved in making decisions and solving problems for successful construction project performance. However, irrational decision-making and conflicts frequently occur with project delay and poor performance because the individual clients are normally non-professionals and lack the capacity to lead various stakeholders on the project. This study analyzes the effects of the project managerial competencies of the private individual clients on the construction performance. The client’s competencies were defined as ‘personal’, ‘social’, and ‘professional’ factors, and participation attitude and partnership were used as the mediating factors. The offline survey was conducted with 241 building owners in South Korea. The result indicates that personal and professional competencies had a positive effect on project performance, whereas social competency did not have an effect. Personal competency had the greatest effect on participation attitude and partnership. Social and professional competencies had a positive effect on partnership, not participation attitude. Hence, this shows that the personal competencies of the building owner as the end user of the project related to cognition, planning, and decision-making are important for project success.

中文翻译：

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个人客户能力对建设项目绩效的影响：调解参与态度和伙伴关系

在建设项目中，客户分为私人、私营公司、公共机构等。在本研究中，私人客户被确定为非专业的个人建筑业主，参与决策和解决成功建设的问题项目绩效。然而，由于个体客户通常非专业人士，缺乏领导项目各利益相关者的能力，因此经常会出现不合理的决策和冲突，导致项目延误和绩效不佳。本研究分析了私人客户的项目管理能力对施工绩效的影响。客户的能力被定义为“个人”、“社会”和“专业”因素，并以参与态度和伙伴关系作为中介因素。此次线下调查针对韩国 241 名业主进行。结果表明，个人和专业能力对项目绩效有积极影响，而社会能力则没有影响。个人能力对参与态度和伙伴关系影响最大。社会和专业能力对伙伴关系有积极影响，而不是参与态度。因此，这表明，作为项目最终用户的业主在认知、规划和决策方面的个人能力对于项目的成功非常重要。