Magnus Johansson
@pgmj.bsky.social
PhD & lic. psychologist. Research specialist at Karolinska Institutet. R package for Rasch psychometrics: pgmj.github.io/easyRasch/
#openscience, #prevention, #psychometrics, #rstats, #photo
#openscience, #prevention, #psychometrics, #rstats, #photo
Undrar hur de mäter det.
January 13, 2026 at 8:01 AM
Undrar hur de mäter det.
I like them, but in this format (from smped.github.io/SimpleUpset/... )
January 8, 2026 at 4:29 PM
I like them, but in this format (from smped.github.io/SimpleUpset/... )
You are welcome! Glad to contribute something back. I've enjoyed reading many of your posts :)
January 2, 2026 at 7:15 PM
You are welcome! Glad to contribute something back. I've enjoyed reading many of your posts :)
That is also recommended in this paper:
Balzer, L. B., & Westling, T. (2023). Invited Commentary: Demystifying Statistical Inference When Using Machine Learning in Causal Research. American Journal of Epidemiology, 192(9), 1545–1549. doi.org/10.1093/aje/...
Balzer, L. B., & Westling, T. (2023). Invited Commentary: Demystifying Statistical Inference When Using Machine Learning in Causal Research. American Journal of Epidemiology, 192(9), 1545–1549. doi.org/10.1093/aje/...
Invited Commentary: Demystifying Statistical Inference When Using Machine Learning in Causal Research
Abstract. In this issue, Naimi et al. (Am J Epidemiol. 2023;192(9):1536–1544) discuss a critical topic in public health and beyond: obtaining valid statist
doi.org
January 2, 2026 at 4:48 PM
That is also recommended in this paper:
Balzer, L. B., & Westling, T. (2023). Invited Commentary: Demystifying Statistical Inference When Using Machine Learning in Causal Research. American Journal of Epidemiology, 192(9), 1545–1549. doi.org/10.1093/aje/...
Balzer, L. B., & Westling, T. (2023). Invited Commentary: Demystifying Statistical Inference When Using Machine Learning in Causal Research. American Journal of Epidemiology, 192(9), 1545–1549. doi.org/10.1093/aje/...
Having to intermittently save backup copies (since MS OneDrive can't be trusted either) seems like something one should not have to do these days.
December 28, 2025 at 10:24 AM
Having to intermittently save backup copies (since MS OneDrive can't be trusted either) seems like something one should not have to do these days.
Maybe, maybe not. bsky.app/profile/drda...
Yikes!
“Increased oxygen consumption – for instance in areas involved in calculation – did not coincide with the expected rise in blood flow. …analyses showed that these regions met their additional energy demand by extracting more oxygen from the unchanged blood supply.”
www.tum.de/en/news-and-...
“Increased oxygen consumption – for instance in areas involved in calculation – did not coincide with the expected rise in blood flow. …analyses showed that these regions met their additional energy demand by extracting more oxygen from the unchanged blood supply.”
www.tum.de/en/news-and-...
40 percent of MRI signals misinterpreted
Interpretation of numerous MRI data may be incorrect: blood flow is not a reliable indicator of brain activity.
www.tum.de
December 28, 2025 at 8:29 AM
Maybe, maybe not. bsky.app/profile/drda...
I'd ask the same question about any VAS rating scale.
December 22, 2025 at 8:57 AM
I'd ask the same question about any VAS rating scale.
Sounds like a proper winter. Here it only rains and +2-7 C temp. Dark and dreary :(
December 14, 2025 at 9:50 PM
Sounds like a proper winter. Here it only rains and +2-7 C temp. Dark and dreary :(
Linking to the actual research paper in the article would be helpful.
December 13, 2025 at 4:35 PM
Linking to the actual research paper in the article would be helpful.
Just realized I have an old gdrive folder with similar content, if it could be of interest: drive.google.com/drive/mobile...
Funktionell kontextualism - Google Drive
drive.google.com
December 12, 2025 at 7:08 AM
Just realized I have an old gdrive folder with similar content, if it could be of interest: drive.google.com/drive/mobile...
Nice. This is also a great read: www.scribd.com/doc/29106580...
Gifford and Hayes - Functional Contextualism 1999 | PDF
Gifford and Hayes - Functional Contextualism 1999
www.scribd.com
December 12, 2025 at 6:31 AM
Nice. This is also a great read: www.scribd.com/doc/29106580...
Might this be applicable? journals.sagepub.com/doi/10.1177/...
These Are Not the Effects You Are Looking for: Causality and the Within-/Between-Persons Distinction in Longitudinal Data Analysis - Julia M. Rohrer, Kou Murayama, 2023
In psychological science, researchers often pay particular attention to the distinction between within- and between-persons relationships in longitudinal data a...
journals.sagepub.com
December 11, 2025 at 3:28 PM
Might this be applicable? journals.sagepub.com/doi/10.1177/...
Thanks, lots of interesting things discussed! Curious about why a zero-inflated or hurdle negbin was not used? ”We employ negative binomial regression models, which are well-suited to the outcome variable’s distribution — right-skewed with a large concentration of zero values.”
December 8, 2025 at 12:13 PM
Thanks, lots of interesting things discussed! Curious about why a zero-inflated or hurdle negbin was not used? ”We employ negative binomial regression models, which are well-suited to the outcome variable’s distribution — right-skewed with a large concentration of zero values.”