Sample size

Registered Reports as the default pathway for confirmatory publication

By rewarding speed, volume, and coherent positive narratives, traditional publishing incentivizes questionable scientific practices and analytic flexibility. The latter especially contributes to blurring the distinction between exploration and …

Just-N Framework: Interactive Application

Interactive Shiny application that guides researchers in choosing, applying, and justifying the most appropriate sample size strategy for quantitative, qualitative, and mixed-methods designs.

PowerSimulate

PowerSimulate is a series of small R Shiny applications to run simulation-based power analyses.

Meta-análisis de correlaciones y meta-regresión en R: Guía práctica [Meta-analysis of correlations and meta-regression in R: A Practical Guide]

Meta-analysis is a widely used method to synthesise data from different studies. However, students, practitioners and researchers often lack the practical knowledge to perform and interpret a meta-analysis. This guide presents a variety of tools for …

Statistical power and sample size calculation in R

In this series/tutorial in Spanish, I explain how to perform statistical **power analysis** to calculate the required **sample size** for a study.

Análisis de poder estadístico y cálculo de tamaño de muestra en R: Guía práctica [Statistical Power Analysis and Sample Size Calculation in R: Practical Guide]

Esta guía práctica acompaña la serie de videos [Poder estadístico y tamaño de muestra en *R*](https://www.youtube.com/playlist?list=PLHk7UNt35ccVdyHqnQ6oXVYA6JBNFrE1x), de mi canal de YouTube [Investigación …