power analysis

pilotr: Pilot the study before running it

Post

A simulated semantic-priming study shows how precision, sign errors, magnitude errors and singular fits can be examined alongside power before choosing a design.

pilotr: Simulate experimental and behavioural data from a portable design specification

Software Package Web application

Simulation-based design analysis from a portable R and Python specification.

ggplotting power curves from the simr package

Post

A custom R function to create ggplot2 visualizations of power curves generated by the simr package's powerCurve function for mixed-effects models.

Language and vision in conceptual processing: Multilevel analysis and statistical power

Publication

Research has suggested that conceptual processing depends on both language-based and vision-based information. We tested this interplay at three levels of the experimental structure: individuals, words and tasks. To this end, we drew on three …

Language and sensorimotor simulation in conceptual processing: Multilevel analysis and statistical power

Publication

Multilevel analyses investigating the interplay between language-based and vision-based information in conceptual processing across semantic priming, semantic decision and lexical decision paradigms, with power analyses revealing sample size requirements for examining perceptual simulation and individual differences.

Parallelizing simr::powercurve() in R

Post

Three strategies for reducing computation time when using simr::powercurve with Kenward-Roger or Satterthwaite methods: using high-performance computing, parallelizing different effects, and parallelizing different sample sizes within the breaks argument.

Linguistic and embodied systems in conceptual processing: Variation across individuals and items

Presentation

The first study (Bernabeu et al., 2021) will merge existing datasets (Lynott et al., 2020; Pexman et al., 2017; Pexman & Yap, 2018; Wingfield & Connell, 2019). The second study will collect novel data to investigate questions such as the unique roles of vocabulary size, sensorimotor experience and attentional control.