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The variance sum law and its implications for modelling [r-libre/2345]

Caron, Pier-Olivier, & Lemardelet, Laura (2021). The variance sum law and its implications for modelling. The Quantitative Methods for Psychology, 17 (2), 80-86. https://doi.org/10.20982/tqmp.17.2.p080

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Content : Published Version
License : Creative Commons Attribution.
 
Item Type: Journal Articles
Refereed: Yes
Status: Published
Abstract: Basic understanding of linear model is primordial in quantitative psychology and modelling. As an advanced topic for students in psychology, modelling data according to given sets of parameters can be challenging. In this paper, we address the variance sum law which states how to combine variance of variables into a new one. The paper uses a progressive pedagogical approach, presenting step by step the statistical prerequisites. An example with code in R is offered to support the presentation. Some matrix algebra is gently introduced to stimulate readers to more advanced topics.
Official URL: https://www.tqmp.org/RegularArticles/vol17-2/p080/
Depositor: Caron, Pier-Olivier
Owner / Manager: Pier-Olivier Caron
Deposited: 25 Jun 2021 13:58
Last Modified: 25 Jun 2021 13:58

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