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How to justify your alpha: step by step

Do you need alpha? | Study goals? | Minimum effect size of interest? | Justify your alpha | Justify your beta | How to control for multiple comparisons? | Examples I joined a panoply of scholars who argue that it is necessary to justify your alpha (that is, the acceptable long-run proportion of false positive […]

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The (mis)measure of emotion through psychophysiology

On New Year’s Eve 2016, Mariah Carey had a…notable performance in which she had difficulties rendering the songs “Emotions” and “We Belong Together”. She roared back on New Year’s Eve 2017, sparking the first meme of 2018. Alas, it is unlikely that the field of psychophysiology will un-mangle its measurement of emotions with reflexes in […]

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50 years of Star Trek: best episode and reflections on autism

The 50th anniversary of the TV show Star Trek‘s first broadcast is today. It was a formative franchise for me growing up, informing many of my first ideas about space exploration, heroism, and a collaborative society. Debates redound about the best episode of the series. However, I agree with Business Insider’s choice of the episode […]

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Preregistration as a guide to reproducibility and scientific competence

UPDATE 20190820: This post led to this paper in the special issue of the Journal of Abnormal Psychology about increasing replicability, transparency, and openness in clinical psychological research. In it, we describe a two-dimensional continuum of registration efforts and now describe preregistrations as those that occur before data are collected, coregistrations as those that occur […]

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Home safety and child welfare

As the heat of summer washes over the country, basic home safety becomes a concern. Sometimes, parents become worried that their messy houses might cause Child Protective Services to view them as unfit parents. A new paper from my research collaborators and I has shown that even in homes with genuine safety concerns, the beauty of a home […]

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