README DOCUMENT This readme file was generated on 10 Jan 2025 by Ashok Rehan, School of School of Surveying and Built Environment, University of Southern Queensland, Australia, Email: u1138430@umail.usq.edu.au  GENERAL INFORMATION (A). Title of Dataset: Investigating Key Project Success Factors: Leadership Practices and Communication in the Australian Construction Sector (B). Author/Principal Investigator Information: 1. Name: Ashok Rehan 2. ORCID: 0000-0003-3330-0352 3. Institution: School of Surveying and Built Environment, University of Southern Queensland, Queensland, Australia Address: 487-535 West Street, Darling Heights, Queensland, Australia 4350 Email: u1138430@umail.usq.edu.au; ashokrehan@gmail.com (C). Principal Supervisor Information 1. Name: A/Prof David Thorpe 2. ORCID: 0000-0002-5494-7668 3. Institution: University of Southern Queensland, Toowoomba, QLD, Australia Address: 487-535 West Street, Darling Heights, Queensland, Australia 4350 Email: David.Thorpe@unisq.edu.au (D). Date of data collection: March 2022 to August 2022 (E) Geographic location of data collection: The datasets are collected for Project Managers/Leaders with diversified experience in the construction industry and Followers (project engineers, project supervisors, team members, and senior managers who worked with project managers) in the New South Wales, Queensland, and Victoria Regions of Australia.   (F). Information about funding sources that supported the collection of the data: Nil   SHARING/ACCESS INFORMATION (A). Accessibility of datasets: 1. It is classified as ‘restricted’. Access to this dataset can be requested by contacting the author and the Principal Supervisor. (B). Licenses/restrictions placed on the data: 1. ‘Restricted’ (C) Links to publications that cite or use the data: 1. The following links are provided to access the various publications in high-impact international journals using collected data for this research project. 1. https://doi.org/10.1016/j.apmrv.2023.12.005 2. https://doi.org/10.1080/15578771.2024.2359378 3. https://doi.org/10.1016/j.plas.2024.100142 4. https://doi.org/10.1108/IJMPB-12-2023-0279 5. https://sciendo.com/article/10.2478/otmcj-2024-0016 (D) Links to other publicly accessible locations of the data: Not applicable (E) Links/relationships to data sets: 1. The research data is held at the UniSQ link at: Ashok Rehan - 0061138430 - DATA DATA & FILE OVERVIEW (A) Folder/File List Details:   1. A zipped folder of all the relevant data files is provided at the university nominated data link: Ashok Rehan - 0061138430 - DATA. The accessibility to this folder is with the author of this document and the Principal Supervisor of this research project. (B) Relationship between files, if important: 1. The data has been collected through a set of survey questionnaire links developed in association with the university’s survey section. The self-assessment of project managers/leaders and the followers’ assessment responses, respectively, have been collected using these created survey questionnaire instruments. These relevant and completed collected responses on the Likert Scale have been compiled on spreadsheets and provided in separate files.    METHODOLOGICAL INFORMATION (A) Description of methods used for collection/generation of data: 1. The self-assessment response data were collected through a questionnaire survey method, targeting primarily project managers/leaders (self-assessment), and the results were tested and validated by another independent group of followers (project engineers, project supervisors, team members and senior managers who worked with project managers) - Dataset 2. The follower's assessment allowed them to report leadership behavioural practices as observed, making the research more effective and the study's results verifiable. The survey participants were selected to align with the research objectives and questions, aiming to gather perception data from qualified project managers/leaders with experience, expertise, and knowledge in managing building construction projects. The questionnaire survey method was selected for this study because of the following reasons: they require less time and energy to administer, incur low cost, offer anonymity because the respondents' names are not required on the completed questionnaires, and respondents have adequate time to provide well thought out answers to the questions. The questionnaire was developed based on 3 key sources: (1) identified attributes for leadership practices, communication, relationship management, and conflict management from a comprehensive literature review; (2) questions from similar studies; and (3) expert opinions obtained through informal discussions. Respondents were asked to provide information on various sections in the questionnaire based on the most recently completed project/s. (1) demographics, (2) project characteristics (type, size, complexity, and site structure [single/multiple], and (3) their perceptions on questions related to (1) leadership practices, (2) communication, (3) relationship management, (4) conflict management, and (5) project success. The data collected for this study are primary data, which are firsthand data collected personally by the researcher. (B)  Methods for processing the data, including the software used: 1. Before data analysis, the collected data were processed for screening missing values, outliers, normality check (skewness and kurtosis), parametric and nonparametric data distribution, multicollinearity, common method bias, homoscedasticity, and reliability and validity measures for the questionnaire and constructs. Subsequently, data analysis was conducted using the Statistical Package for Social Sciences (SPSS-29.0.2.0), involving exploratory factor analysis and multivariate/stepwise regression analysis. This analytical approach aimed to identify key success factors, elucidate leadership behavioural practices, and assess their impact on project success for construction projects. For further details on data collection and processing/interpretation, refer to the published papers - links already provided in the document. (C) Describe any quality-assurance procedures performed on the data: 1. The data quality and its reliability and validity measures processing have been described above. For further information, refer to the published papers in the various international journals on this research. (D)  People involved with sample collection, processing, analysis and/or submission: 1. The author of this document collected, processed, analysed, and interpreted data exclusively. The collected data were used for this research project, which resulted in five articles being published in international journals worldwide.   DATA-SPECIFIC INFORMATION FOR: Dataset 1: (A) Self-Assessment Reponses for Project Managers/Leaders 1. Number of variables: 74 2. Number of cases/rows: 74 3. Number of Constructs: 5 (Leadership Practices, Communication, Relationship Management, Conflict Management and Project Success) 4. Number of Mediators: 2 (Relationship Management and Conflict Management) For further information, refer to the published papers DATA-SPECIFIC INFORMATION FOR: Dataset 2: (B)  Assessment Responses for Followers (project engineers, project supervisors, team members and senior managers who worked with project managers) 1. Number of variables: 74 2. Number of cases/rows: 74 3. Number of Constructs: 5 (Leadership Practices, Communication, Relationship Management, Conflict Management and Project Success) For further information, refer to the published papers