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What is Heteroscedasticity

Chapter 10
Applied Guide for Event Study Research in Supply Chain Management
The error variance that is different or varies with some level of dispersion.
Published in Chapter:
Resolving Issues and Troubleshooting Problems
Copyright: © 2022 |Pages: 12
DOI: 10.4018/978-1-7998-8969-4.ch010
Abstract
This chapter takes many of the research project design steps and analysis at this point and looks at things that can (and may) go wrong and what can be done about this. The author discusses how the issue may have been mitigated with effective research design decisions ahead of time and how to recover from an issue when it is identified later. As such, this chapter provides an overview of design decisions and why they are essential. It provides a range of remedies and actions that can be taken if issues and problems are identified part-way through a project. Several examples are provided of how different scholars have resolved the issues in their published articles, showing that resolutions are possible and practical.
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Chapter 11
Cross-Sectional Regression
A situation when the variance of the error terms is not constant over the range of the independent variables.
Published in Chapter: Cross-Sectional Regression; From: Applied Guide for Event Study Research in Supply Chain Management
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Chapter 4
LAD Regression Application: Factors Affecting Household Expenditures of Working Elderly in Turkey
It means that error terms do not have constant variance. Thus, the variance of the error terms will change with the independent variable.
Published in Chapter: LAD Regression Application: Factors Affecting Household Expenditures of Working Elderly in Turkey; From: International Perspectives and Strategies for Managing an Aging Workforce
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Chapter 11
Modeling Interactive Behaviors While Learning With Digitized Objects in Virtual Reality Environments
A signal is heteroscedastic if there is inter-individual variability in the time series, given that sub-groups of learners engage differently in the same class of behavior. For example, a rotation movement may be characterized by the same trajectory, at the same time as it varies substantially in terms of its pitch across different learners.
Published in Chapter: Modeling Interactive Behaviors While Learning With Digitized Objects in Virtual Reality Environments; From: Cognitive and Affective Perspectives on Immersive Technology in Education
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