Notes on psychology, statistics, and R, sometimes

  • 2025-10-14 • 507 words •
    opinion
    research
    Preprints---scholarly manuscripts not yet captured by the publication industry---are widely read and circulated, yet the "[intellectual perestroika](https://eprints.soton.ac.uk/251894/1/harnad90.skywriting.html)" they could facilitate hasn't been uniformly realized because…
  • 2025-09-24 • 1,235 words •
    r
    research
    Using PsyArXiv preprint metadata (provided in the [psyarxivr](https://github.com/mvuorre/psyarxivr) package) to create a single author's coauthorship network in R.
  • 2025-08-22 • 3,121 words •
    research
    workflow
    Stubborn opinions, lessons learned, and other esoterica on the minutiae of day-to-day workflows in academic psychology.
  • 2025-07-03 • 305 words •
    communication
    workflow
    PDF-direct is a Firefox extension that skips academic journals' "enhanced" PDF viewers to direct PDF downloads.
  • 2025-06-06 • 427 words •
    communication
    workflow
    The vscode-zotero extension allows quickly inserting citation keys from Zotero to your Quarto documents, and updating the associated .bib file with the citation's biblatex entry. Here's how to install and use it.
  • 2025-05-02 • 1,286 words •
    r
    statistics
    This post shows how to fit a three-variable multilevel mediation model with brms.
  • 2025-02-03 • 977 words •
    communication
    research
    Commitment to transparent, open, and credible peer review
  • 2024-06-20 • 1,207 words •
    communication
    research
    workflow
    Preprints are pretty, pretty good
  • 2024-01-19 • 1,103 words •
    research
    statistics
    Recommended readings in quantitative methods
  • 2023-03-24 • 593 words •
    research
    To what extent does infant screen time predict later psychological outcomes?
  • 2023-01-01 • 2,390 words •
    r
    statistics
    Researchers studying longitudinal data routinely center their predictors to isolate between- and within-cluster contrasts. This within-cluster centering is usually an easy data-manipulation step. However, centering variables on the observed means can bias the resulting…
  • 2022-12-08 • 728 words •
    workflow
    Some notes (for myself) on how I like to set up my MacOS environment for work (and fun).
  • 2022-12-07 • 3,701 words •
    r
    statistics
    How to conduct multiverse analyses in R with tidy pipelines and parallel processing.
  • 2022-12-06 • 957 words •
    r
    visualization
    I like raincloud plots, but think that they can duplicate the information a bit, which might have detrimental effects on clarity and comprehension.
  • 2022-12-03 • 1,062 words •
    r
    workflow
    Running R on a remote computer is surprisingly easy
  • 2022-06-29 • 453 words •
    r
    My journey to make a website favicon with the hexSticker R package
  • 2022-06-15 • 185 words •
    r
    workflow
    How to send notifications from R, or any other CLI, to your phone
  • 2020-02-06 • 1,506 words •
    r
    statistics
    Answer more questions with your estimated parameters, without refitting the model.
  • 2019-02-18 • 6,204 words •
    r
    statistics
    A reasonable choice might be the zero-one-inflated beta model
  • 2018-12-13 • 387 words •
    r
    visualization
    How to combine arbitrary ggplots
  • 2018-12-12 • 384 words •
    r
    Use the glue R package to join strings.
  • 2017-10-09 • 15,490 words
    Signal Detection Theory is a widely used framework for understanding decisions by distinguishing between response bias and true discriminability in various psychological domains. Manual calculation approaches to estimating SDT models' parameters, while commonly used, can be…
  • 2017-03-21 • 2,373 words •
    r
    statistics
    How to calculate Bayes Factors with the R package brms using the Savage-Dickey density ratio method.
  • 2017-01-04 • 939 words •
    r
    statistics
    visualization
    Scatterplots can be a very effective form of visualization for data from within-subjects experiments. You'll often see within-subject data visualized as bar graphs (condition means, and maybe mean difference if you're lucky.) But alternatives exist, and today we'll take a look…
  • 2017-01-02 • 3,372 words •
    r
    statistics
    2017 will be the year when social scientists finally decided to diversify their applied statistics toolbox, and stop relying 100% on null hypothesis significance testing (NHST). A very appealing alternative to NHST is Bayesian statistics, which in itself contains many…
  • 2016-12-06 • 659 words •
    r
    visualization
    Arrange your visual display of information to maximize your figures' impact.
  • 2016-09-29 • 1,928 words •
    r
    statistics
    Meta-analysis is a special case of Bayesian multilevel modeling
  • 2016-03-24 • 799 words •
    r
    visualization
    Attractive visualization for plotting activity over time in R with ggplot2.
  • 2016-03-15 • 1,148 words •
    r
    visualization
    Some tips on creating figures with multiple panels in R
  • 2016-03-06 • 2,623 words •
    r
    statistics
    How to obtain average & individual-specific confidence limits for regression lines in a multilevel regression modeling context
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