Carl F. Falk
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cffalk.bsky.social
Carl F. Falk
@cffalk.bsky.social
110 followers 220 following 83 posts
Associate Professor | Quantitative Psychologist | Psychometrician
https://www.psych.mcgill.ca/perpg/fac/falk/
https://scholar.google.com/citations?user=9BA_cL0AAAAJ
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cffalk.bsky.social
Considering EBICglasso for network modeling, but have a lot of missing data? A recent paper (accepted at Multivariate Behavioral Research), osf.io/preprints/os... may help. The paper is a bit technical, so a new blog post focuses on software: www.psych.mcgill.ca/perpg/fac/fa...

#rstats #quantpsych
Picture of a network model with 25 nodes and red and blue lines (edges) connecting the nodes.
August 21, 2025 at 3:44 PM
cffalk.bsky.social
If you do survey research with Likert-type items and worry about random responders, Michael John Ilagan & I made a Shiny app we think some of you may like.
falkcarl.shinyapps.io/BotApp1/

#SurveyResearch #DataQuality #Psychometrics #OnlineSurveys #SurveyBots #RandomResponders #rstats #Shiny
Picture shows Shiny app where a user has selected a cut-off value for person-total correlation do divide a distribution into cases that are flagged as possible random responders, or spared. Classification metrics (accuracy, sensitivity, specificity) at the given cut-off are shown after the user clicks "Classify!"
July 28, 2025 at 2:13 PM