Mark Rubin - One-Sided Tests In this paper (Rubin, 2022), I make two related points: (1) researchers should halve two-sided p values if they use them to make directional claims, and (2) researchers should not halve their alpha le...

#statstab #314 One-sided significance tests

Thoughts: Directional tests are more complex than would initially seem. Here is one view on their proper use.

#onetail #directional #NHST #significance

sites.google.com/site/markrub...

Improving Your Statistical Inferences - 5  Asking Statistical Questions This open educational resource contains information to improve statistical inferences, design better experiments, and report scientific research more transparently.

#statstab #310 Directional (One-Sided) versus Non-Directional (Two-Sided) Tests

Thoughts: This topic is more nuanced than just power, but useful to know that you save on sample size *if* you're right!

#hypothesis #nhst #power #onetail #directionaltest

lakens.github.io/statistical_...

#oc #onetail