Exercise, Mental Health, and Big Data

By Zad | August 14, 2018

Recently, a large cross-sectional study that investigated the relationship between exercise frequency and mental health was published in The Lancet Psychiatry and also happened to set Twitter on fire. I want to discuss the good and the not so good.

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Misuse of Standard Error in Clinical Trials

By Zad | August 7, 2018

Analytic statistics are commonly used to make inferences from the data. However, they are often misused because of misconceptions about what they do. In this post, I discuss how standard error is commonly misused in clinical trials.

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High Statistical Power Can Be Deceiving

By Zad | July 23, 2018

Most studies aim to achieve high statistical power and precision by increasing sample sizes. Many researchers will conclude that there is no effect if they get a nonsignificant result in a high-powered study. In this post, I discuss why this is incorrect.

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Chocolate Milk is Delicious, Not Magic

By Zad | July 15, 2018

A look at the results of a systematic review and meta-analysis that have been interpreted as evidence for the benefits of chocolate milk consumption.

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Spotting Predatory Journals

By Zad | July 3, 2018

Predatory journals often seem like normal scientific journals that promise rapid publication and low-cost fees. Unfortunately, many of these journals are too good to be true. In this post, I take a look at predatory journals, their characteristics, and how one can identify them.

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