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What does it mean for two variables to be correlated? Is that the same or different than if they’re associated or related? This is the ..read more
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Effect size statistics are required by most journals and committees these days ⁠— for good reason.  They communicate just how big ..read more
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By Kim Love When learning about linear models —that is, regression, ANOVA, and similar techniques—we are taught to calculate an R2. ..read more
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The results of any statistical analysis should include the confidence intervals for estimated parameters. How confident are you that you ..read more
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Whether or not you run experiments, there are elements of experimental design that affect how you need to analyze many types of studies ..read more
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The following statement might surprise you, but it’s true. To run a linear model, you don’t need an outcome variable Y that’s ..read more
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by Christos Giannoulis Many data sets contain well over a thousand variables. Such complexity, the speed of contemporary desktop computers ..read more
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Many of us love performing statistical analyses but hate writing them up in the Results section of the manuscript. We struggle with big- ..read more
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The Analysis Factor by Karen Grace-martin - 3M ago
By Karen Grace-Martin Confounding variable is one of those statistical terms that confuses a lot of people. Not because it represents a ..read more
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Latent constructs, such as liberalism or conservatism, are theoretical and cannot be measured directly. But we can use a set of questions ..read more

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