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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Posted ContentDOI
Confronting p-hacking: Addressing p-value dependence on sample size
Estibaliz Gómez-de-Mariscal,Alexandra Sneider,Hasini Jayatilaka,Jude M. Phillip,Denis Wirtz,Arrate Muñoz-Barrutia +5 more
TL;DR: A systematic and easy-to-follow protocol that models the p-value as an exponential function to test the existence of real statistical significance and provides a robust assessment of the null hypothesis with accurate values for the minimum data-size needed to reject it is proposed.
Dissertation
The Effect of Physiological Modulators on Resting-state fMRI Functional Connectivity
TL;DR: The results confirm that it is important to account for the effect of physiological noise when examining resting-state fMRI functional connectivity, in the study of healthy brain function, but more importantly, in states of altered brain function.
Journal ArticleDOI
Point and interval forecasts of electricity demand with Reg-SARMA models
TL;DR: In this article, a two-stage approach to forecasting hourly electricity demand by using a linear regression model with serially correlated residuals is presented. But the model is not a white noise series, and the residuals are not a seasonal autoregressive moving average.
Journal ArticleDOI
Open-Source Personality Trait Norms for the United Kingdom and Ireland
TL;DR: In this paper , the authors created open-source norm tables for different age groups (14-17 years, 18-25 years, and 30+ years) within a combined standardization sample from the United Kingdom (UK) and Ireland (N = 18,591).
Journal ArticleDOI
Migrant background and the impact of the COVID-19 pandemic on mental healthcare consultations among children and adolescents in Norway: a nationwide registry study
TL;DR: In this paper , the authors investigated the impact of lockdown and subsequent COVID-19 infection control measures on children's health service use for mental health problems according to migrant background and found that after lockdown, mental health consultation volumes for non-migrant children increased more than for children with migrant background.
References
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Journal ArticleDOI
Examining the Relationship Between Reviews and Sales: The Role of Reviewer Identity Disclosure in Electronic Markets
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