Journal ArticleDOI
Research Commentary---Too Big to Fail: Large Samples and the p-Value Problem
TLDR
This research commentary recommends a series of actions the researcher can take to mitigate the p-value problem in large samples and illustrates them with an example of over 300,000 camera sales on eBay.Abstract:
The Internet has provided IS researchers with the opportunity to conduct studies with extremely large samples, frequently well over 10,000 observations. There are many advantages to large samples, but researchers using statistical inference must be aware of the p-value problem associated with them. In very large samples, p-values go quickly to zero, and solely relying on p-values can lead the researcher to claim support for results of no practical significance. In a survey of large sample IS research, we found that a significant number of papers rely on a low p-value and the sign of a regression coefficient alone to support their hypotheses. This research commentary recommends a series of actions the researcher can take to mitigate the p-value problem in large samples and illustrates them with an example of over 300,000 camera sales on eBay. We believe that addressing the p-value problem will increase the credibility of large sample IS research as well as provide more insights for readers.read more
Citations
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Journal ArticleDOI
Perceived household financial decline and physical/mental health among adolescents during the COVID-19 crisis: Focusing on gender differences
Nari Yoo,Sou Hyun Jang +1 more
TL;DR: In this article , a cross-sectional 2020 Korea Youth Risk Behavior Web-based Survey (KYRBS) collected between August and November 2020 in South Korea was analyzed to examine the factors associated with physical and mental health status among adolescents.
Journal ArticleDOI
Child reward neurocircuitry and parental substance use history: Findings from the Adolescent Brain Cognitive Development Study.
Amy E. Kwarteng,Muhammad Mahboob Ur Rahman,Dylan G. Gee,M. Alejandra Infante,Susan F. Tapert,Brenda Curtis +5 more
TL;DR: This article examined how parental substance use history relates to reward system functioning, specifically nucleus accumbens (NAcc) and putamen activation at age 9-10 in the Adolescent Brain Cognitive Development (ABCD) Study.
The Comparison of Classical and Bayesian Bivariate Binary Logistic Regression Prediction for Unbalanced Response (Case Study: Customers of Antivirus Software 'X' Company)
TL;DR: Based on the comparison of classical and Bayesian bivariate binary logistic regression prediction, Bayesian method was evidenced to yield better performance compared to classical method.
Dissertation
Improving Data Quality, Model Functionalities and Optimizing User Interfaces in Decision Support Systems
TL;DR: This dissertation proposes an approach for reducing unobserved product heterogeneity in online transaction data sets and an approach to elicit consumer product preferences for exponential (beside linear) utility functions aiming at predicting consumers’ utilities and willingness to pay.
Book ChapterDOI
What Drives Inner City Attractiveness for Society? The Role of Brick-and-mortar Stores
TL;DR: In this paper, the authors quantify a variety of inner city characteristics, ranging from its store and service provider portfolio to its ambience and accessibility, and measure their association with its perceived attractiveness.
References
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To Explain or to Predict
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Journal ArticleDOI
Examining the Relationship Between Reviews and Sales: The Role of Reviewer Identity Disclosure in Electronic Markets
TL;DR: It is suggested that identity-relevant information about reviewers shapes community members' judgment of products and reviews and shows that shared geographical location increases the relationship between disclosure and product sales, thus highlighting the important role of geography in electronic commerce.
Journal ArticleDOI
Examining the Relationship Between Reviews and Sales: The Role of Reviewer Identity Disclosure in Electronic Markets
TL;DR: In this paper, the authors used a unique data set based on both chronologically compiled ratings as well as reviewer characteristics for a given set of products and geographical location-based purchasing behavior from Amazon, and provided evidence that community norms are an antecedent to reviewer disclosure of identity-descriptive information.
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Regression Methods in Biostatistics: Linear, Logistic, Survival, and Repeated Measures Models
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