research methods

Specifying version number in OSF download links

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How to append version numbers to OSF download links using the '?version=X' parameter to document and preserve the exact versions of files used in research projects.

Covariates are necessary to validate the variables of interest and to prevent bogus theories

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The need for covariates—or nuisance variables—in statistical analyses is twofold. The first reason is purely statistical and the second reason is academic. First, the use of covariates is often necessary when the variable(s) of interest in a study may be connected to, and affected by, some satellite variables (Bottini et al., 2022; Elze et al., 2017; Sassenhagen & Alday, 2016). This complex scenario is the most common one due to the multivariate, dynamic, interactive nature of the real world.

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

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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

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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.

Brief Clarifications, Open Questions: Commentary on Liu et al. (2018)

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Critical examination of Liu et al. (2018) claims about methodological inconsistencies in ERP studies of conceptual modality switching, arguing that their conclusions overlook theoretical and methodological justifications for varying analytical approaches.

Collaboration while using R Markdown

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Based on Michael Frank's presentation, three methods for collaborating on R Markdown documents: using GitHub for version control, copying text to trackable editors while preserving code, or knitting to Word/PDF formats.

EEG error: datasets missing channels

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Most of the recordings are perfectly fine, but a few present a big error. Out of 64 original electrodes, only two appear. These are the right mastoid (RM) and the left eye sensor (LEOG). Both are bipolar electrodes. RM is to be re-referenced to the online reference electrode, while LEOG is to be re-referenced to the right eye electrode.