research methods

Preprocessing the Norwegian Web as Corpus (NoWaC) in R

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An R script for preprocessing frequency list data from the Norwegian Web as Corpus (NoWaC), including instructions for downloading and preparing the corpus data.

ggplotting power curves from the simr package

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

How to visually assess the convergence of a mixed-effects model by plotting various optimizers

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A custom R function to create ggplot2 visualizations of fixed effects from models refitted with multiple optimizers using lme4's allFit function, enabling visual assessment of convergence validity in mixed-effects models.

Assigning participant-specific parameters automatically in OpenSesame

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OpenSesame offers options to counterbalance properties of the stimulus across participants. However, in cases of more involved assignments of session parameters across participants, it becomes necessary to write a bit of Python code in an inline script, which should be placed at the top of the timeline. In such a script, the participant-specific parameters are loaded in from a csv file. Below is a minimal example of the csv file.

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.

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.

Web application for the simulation of experimental data

Application / dashboard

Open-source R-based web application for creating varied experimental data sets with customizable structures including between-group and within-participant variables that can be categorical or continuous.

Modality exclusivity norms for 747 properties and concepts in Dutch: A replication of English

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This study is a cross-linguistic, conceptual replication of Lynott and Connell’s (2009, 2013) modality exclusivity norms. The properties and concepts tested therein were translated into Dutch, and independently rated and analyzed (Bernabeu, 2018).