scholarly journals Investigating the Causal Relationships between Project Complexities and Project Cost: An Empirical Study from New Zealand

2021 ◽  
Vol 2021 ◽  
pp. 1-17
Author(s):  
Linlin Zhao ◽  
Jasper Mbachu ◽  
Zhansheng Liu ◽  
Xuefeng Zhao ◽  
Bill Wang
Keyword(s):  
Structural Model ◽  
Empirical Studies ◽  
External Environment ◽  
Poor Performance ◽  
Evidence Based ◽  
Direct Effects ◽  
Project Cost ◽  
Cost Overruns ◽  
Project Complexity ◽  
The Relationship

Project complexity is usually considered as one of the main causes of cost overruns, resulting in poor performance and thus project failure. However, empirical studies focused on evaluating its effects on project cost remain lacking. Given this circumstance, this study attempts to develop the relationship between project cost and the multidimensional project complexity elements. The study assumes complexity as a multidimensional factor including the task, organization, market, legal, and environment complexities. And it adopts an empirical evidence-based structural model to account for the relationships between project cost and project complexity. By doing so, a quantitative assessment of multidimensional project complexity has been developed. The findings suggest that task and organization complexities have direct effects on project cost, while market, legal, and external environment complexities have indirect effects on project cost. The practical contribution is that the findings can improve the understanding of which dimension of complexity significantly influences project cost and the need to focus efforts on strategically addressing those complexities.

scholarly journals Structural Equation Model for Investigating the Causal Relationships Between Project Complexities and Project Cost: An Empirical Study from New Zealand

2019 ◽  
Author(s):  
Linlin Zhao ◽  
Huirong Zhang
Keyword(s):  
Structural Equation ◽  
Structural Model ◽  
Empirical Studies ◽  
Poor Performance ◽  
Equation Model ◽  
Evidence Based ◽  
Direct Effects ◽  
Project Cost ◽  
Cost Overruns ◽  
Project Complexity

Project complexity is usually considered as one of main causes of cost overruns, resulting in poor performance and thus project failure. However, empirical studies focused on evaluating its effects on project cost remain lacking. Given this circumstance, this study attempts to develop the relationships between project cost and the multidimensional project complexity elements. We establish complexity as a multidimensional factor including the task, organization, market, legal, and environment complexities. This study uses an empirical evidence-based structural model to account for the relationships between project cost and project complexity. By doing so, a quantitative assessment of multi-dimensional project complexity has been developed. The findings suggest that task and organization complexities have direct effects on project cost, while market, legal and external environment complexities have indirect effects on project cost. The practical contribution is that the findings can improve the understanding of which dimension of complexity significantly influence project cost, and the need to focus efforts on strategically addressing that complexities.

Regression Modelling for Prediction of Construction Cost and Duration

2016 ◽  
Vol 857 ◽  
pp. 195-199 ◽  
Author(s):  
Nivea Thomas ◽  
Anu V. Thomas
Keyword(s):  
Regression Models ◽  
Critical Path ◽  
Real Data ◽  
Project Managers ◽  
Statistical Regression ◽  
Statistical Process ◽  
Project Cost ◽  
Cost Overruns ◽  
Building Projects ◽  
The Relationship

Construction investments are sensitive to time and cost overruns. Delay and cost escalation are considered two threats to project success. The project objective is to develop a model to predict project cost and duration based on historical data of similar projects. Statistical regression models are developed using real data of building projects. The methodology is adopted in 3 steps: a) Data collection b) Statistical analysis using Statistical Package for Social Sciences (SPSS) software c) Interpretation of results. The real data of cost and duration of 51 building projects have been collected. In statistics, regression analysis is a statistical process for estimating the relationships among variables. It includes many techniques for modelling and analyzing several variables, when the focus is on the relationship between a dependent variable and one or more independent variables. The analysis is done using SPSS developed by IBM Corporation. The Regression models have been developed using the data collected from Noel Builders, Kakkanad, Ernakulam to predict the project cost and duration. The developed models are validated using split sample approach. The model outputs can be used by project managers in the planning phase to validate the scheduled critical path time and project budget.

Religion, Virtues, and Health

2021 ◽  
Author(s):  
Neal M. Krause
Keyword(s):  
Empirical Study ◽  
Empirical Research ◽  
Empirical Studies ◽  
Model Development ◽  
Evidence Based ◽  
Theory Construction ◽  
Conceptual Scheme ◽  
Religion And Health ◽  
Unique Approach ◽  
The Relationship

The literature on the relationship between religion and health is vast, but it is in a state of disarray. One empirical study has been piled upon another, while little effort has been made to integrate them into a more tightly knit theoretical whole. This book was designed to address this problem. It is the product of 40 years of empirical research, hundreds of peer-reviewed publications, and countless hours of deep reflection. This volume contributes to the literature in three ways: (1) a unique approach to theory construction and model development is presented that is designed to produce a conceptual scheme that is evidence based and empirically verifiable; (2) a new construct—communities of faith—that has largely been overlooked in empirical studies on religion is introduced; and (3) the need is highlighted for a no-holds-barred discussion of how to practice one’s research craft.

scholarly journals Correlates of evidence-based nursing practice among nurses in Saudi Arabia: A structural equation model

2021 ◽  
Author(s):  
Mohammad H Abuadas
Keyword(s):  
Saudi Arabia ◽  
Registered Nurses ◽  
Structural Equation ◽  
Nursing Practice ◽  
Structural Model ◽  
Research Work ◽  
Equation Modeling ◽  
Evidence Based ◽  
The Relationship ◽  
Evidence Based Nursing

Background: Consideration needs to be given to variables that impact the application of evidence-based nursing practice. Objective: This study aimed to generate and validate a structural model of factors predictive of evidence-based nursing practice.   Methods: A cross-sectional descriptive design was used, with 612 registered nurses in the southern area of Saudi Arabia selected using a convenience sampling procedure. Data were collected during the period from November 2019 to January 2020 using valid and reliable questionnaires, including the novel Registered Nurses’ Competencies, Beliefs, Facilitators, Barriers, and Implementation of the Evidence-based Practice Questionnaire. A structural equation modeling technique was used for data analysis. Results: Evidence-based nursing practice was significantly influenced by nurses’ competency, beliefs, barriers, and facilitators. 38.75% of the variance was explained by all factors. Specifically, nurses’ beliefs partially mediated the relationship between nurses’ competency and the evidence-based application of nursing practice. In addition, the relationship between nurses’ beliefs and evidence-based application of nursing practice was partially mediated by organizational facilitators. Nurses’ competency and beliefs were significantly influenced by attending the workshop, education level, years of experience, and previous research work. Conclusion: The current study highlights the significant effect of personal and organizational variables toward the application of evidence-based nursing practice.

scholarly journals A Conceptual Framework for Impact of Project Complexity on Success of Railway Construction Projects: The Moderating Role of Effective Communications to All Stakeholders

2021 ◽  
Vol 2 (1) ◽  
pp. 62-69
Author(s):  
Hassan Ghaleb ◽  
Abdul Aziz Abdullah
Keyword(s):  
Construction Projects ◽  
Project Success ◽  
Negative Impact ◽  
Empirical Studies ◽  
Construction Project ◽  
Project Complexity ◽  
Project Management Institute ◽  
The Relationship ◽  
Moderating Role

The aim of this study is proposing a framework for the roll of effective communications to all stakeholders in moderating project complexity to improve project success. This paper deeply reviewed the studies published in project complexity and it is effect on success of construction project. This research reveals that effect communications as the most important factor can play a significant role in influencing the relationship between complexity and project success. It was confirmed from previous studies that the negative impact of project complexity on success of construction project is conclusive. Complexity dimensions identified by the Project Management Institute (PMI) into three groups are: human behaviour, ambiguity, and system behaviour. Many empirical studies proved there is a positive and significant relationship between project complexity and project success. Thus, there is a need for a moderating variable to enhance the success of complex construction projects. In this study the main contribution is bridging this gap of knowledge by empirical examining the relations between complexity of construction projects and project success with the interaction of effective communications to all stakeholders as a moderator. This study will enhance development of construction projects in Malaysia and assist scholars and practitioners to achieve maximum project success.

An empirical review of gambling expansion and gambling-related harm

2018 ◽  
Vol 64 (5-6) ◽  
pp. 295-306 ◽  
Author(s):  
Debi A. LaPlante ◽  
Heather M. Gray ◽  
Pat M. Williams ◽  
Sarah E. Nelson
Keyword(s):  
Literature Review ◽  
Peer Review ◽  
Empirical Data ◽  
Empirical Studies ◽  
Expansion Method ◽  
Responsible Gambling ◽  
Review Literature ◽  
Evidence Based ◽  
Empirical Comparison ◽  
Related Harm

Abstract. Aims: To discuss and review the latest research related to gambling expansion. Method: We completed a literature review and empirical comparison of peer reviewed findings related to gambling expansion and subsequent gambling-related changes among the population. Results: Although gambling expansion is associated with changes in gambling and gambling-related problems, empirical studies suggest that these effects are mixed and the available literature is limited. For example, the peer review literature suggests that most post-expansion gambling outcomes (i. e., 22 of 34 possible expansion outcomes; 64.7 %) indicate no observable change or a decrease in gambling outcomes, and a minority (i. e., 12 of 34 possible expansion outcomes; 35.3 %) indicate an increase in gambling outcomes. Conclusions: Empirical data related to gambling expansion suggests that its effects are more complex than frequently considered; however, evidence-based intervention might help prepare jurisdictions to deal with potential consequences. Jurisdictions can develop and evaluate responsible gambling programs to try to mitigate the impacts of expanded gambling.

Structural Modeling of Institute of Entrepreneurship in Russia

2019 ◽  
pp. 34-48
Author(s):  
Svetlana L. Sazanova
Keyword(s):  
Global Economy ◽  
Structural Model ◽  
Institutional Environment ◽  
Small And Medium Enterprises ◽  
Structural Modeling ◽  
Entrepreneurial Activity ◽  
Pattern Modeling ◽  
Medium Enterprises ◽  
The Impact ◽  
The Relationship

Entrepreneurship plays an important role in the modern global economy; the share of products of small and medium enterprises in the gross product and exports not only of the developed but also of developing countries is growing. Innovation processes cover all sectors of the economy, and more and more people are involved in entrepreneurial activity, which contributes to the penetration of entrepreneurial thinking and business values in all areas of the socioeconomic life of society. The Institute of Entrepreneurship plays an increasingly prominent role in the institutional environment of socio-economic systems. This actualizes the problem of studying the relationship of the institution of entrepreneurship with the institutions of law, culture, management. This requires a methodology that allows you to explore the impact on the institute of entrepreneurship not only economic, but also non-economic factors. The methodology of the “old” institutionalism possesses such a tool, it is structural modeling (pattern modeling), which allows to explore the diversity of interrelationships of the institution of entrepreneurship with other components of the institutional and economic environment. The article explored the features of the development of the institution of entrepreneurship in Russia, established the relationship between the institution of entrepreneurship, values, motives and incentives for entrepreneurial activity, built a structural model of the institution of entrepreneurship based on the methodology of the old institutionalism (pattern modeling). The structural model of the institution of entrepreneurship reveals the relationship between the institution of entrepreneurship, the values of entrepreneurial activity, its motives and incentives; as well as the relationship between the institution of entrepreneurship with the institutions of governance, cultural and religious institutions, legal institutions and society.

Spotting a liar by looking for microexpressions: Challenges and Opportunities

2019 ◽  
Author(s):  
Xunbing Shen
Keyword(s):  
Empirical Evidence ◽  
Deception Detection ◽  
Empirical Studies ◽  
High Stake ◽  
Challenges And Opportunities ◽  
Cues To Deception ◽  
The Relationship

Microexpressions do exist, and they are regarded as valid cues to deception by many researchers, furthermore, there is a lot of empirical evidence which substantiates this claim. However, some researchers don’t think the microexpression can be a way to catch a liar. The author elucidates the theories predicting that looking for microexpressions can be a way to catch a liar, and notes that some data can support for the utilization of microexpressions as a good way to detect deception. In addition, the author thinks that the mixed results in the area of investigating microexpressions and deception detection may be moderated by the stake. More empirical studies which employ high-stake lies to explore the relationship between microexpressions and deception detection are needed.

Sign in / Sign up

Export Citation Format

Share Document