MH Manuel Haqiqatkhah

PhD candidate Psychological Processes @MS_Utrecht丨MSc AI & MSc Psychology grad @KU_Leuven; retired 📶 engineer丨 #ItGetsBetter believer丨من هرچه ام با تو زیباترم.

[MH Manuel Haqiqatkhah @_psyguy]

My presentation at #SAA2025 about modeling circadian rhythms in momentary affect is accessible on @OSFramework: https://t.co/VzYQfRtkZu.
A summary thread of one of the papers discussed in the presentation is in the quote below:

[MH Manuel Haqiqatkhah @_psyguy]

Studying circadian rhythms in #ESM is getting popular in #EmotionDynamics research as peak timing may have substantive value.
In this #preprint we show how some papers mislocate the peak & argue why even its correct estimation is less useful than expected.
https://t.co/CD7Bxbf7Yf

[MH Manuel Haqiqatkhah @_psyguy]

@EikoFried Congratulations! 🎉🎉🎉

[Ruben C. Arslan @rubenarslan]

A new semantic search engine for survey questions! This is based on our SurveyBot3000 model (to embed items) and 31k instruments from the APA PsycTests database.

[MH Manuel Haqiqatkhah @_psyguy]

@PepitoTheCat Nice, thanks!

[MH Manuel Haqiqatkhah @_psyguy]

To protect my sanity (almost literally) and to claim my night sleep back (literally) I decided to bite the 100-euro bullet today—🚬🚬🚬.

[MH Manuel Haqiqatkhah @_psyguy]

Me refusing to pay an additional €98/month on top of my current monthly €22 to upgrade my #ClaudeCode Pro plan to Max:

[typedfemale @typedfemale]

man adopts polyphasic sleep schedule due to claude code usage limits

[MH Manuel Haqiqatkhah @_psyguy]

@psychostudent Maybe @RetractionWatch has some thoughts on it?

[Eiko Fried @EikoFried]

Are you doing #EMA research and wonder how to go about it? In recent work we've adressed some open questions and challenges, here is a brief summary of papers and materials. 🧵

[alphaXiv @askalphaxiv]

For just $60, we classified half a million arXiv papers by institution with DeepSeek-V3🤯

You can now filter arXiv papers by organizations like DeepSeek, Meta, or OpenAI

See which organizations are contributing the most to open science and research 🔎

[MH Manuel Haqiqatkhah @_psyguy]

We would like to thank Dr. Sacha Epskamp (@SachaEpskamp), Dr. Charles Driver (@CharlesDriverAU), and Dr. Michael D. Hunter (of Penn State, whom I could not find on Twitter) for their thoughtful reviews and comments which led to the major improvement to our paper.

#PsychTwitter

[MH Manuel Haqiqatkhah @_psyguy]

Our paper on day-of-week effects & weekly dynamics has been accepted for publication at @APA_Journals #PsychologicalMethods.
Besides what is covered in the quoted thread, this version (on #PsyArXiv: https://t.co/IWg4JbNg3o) reflects further on model selection & measurement error.

[MH Manuel Haqiqatkhah @_psyguy]

My second #PhD paper with Ellen Hamaker on understanding and modeling day-of-week effects and weekly dynamics in daily diaries is on #PsyArXiv:
https://t.co/v7afGCKNaF.
It's a tutorial on seasonal ARMA (#SARMA) #timeseries models with a Shiny app and notable findings.
A summary🧵

[MH Manuel Haqiqatkhah @_psyguy]

If you have already read the paper, the major additions are in the discussion section and the footnotes, in which we give a critical account of how measurement error can affect SARMA models—and our findings—with additional considerations for automated model selection routines.

[Yuntian Deng @yuntiandeng]

For those curious about how o3-mini performs on multi-digit multiplication, here's the result. It does much better than o1 but still struggles past 13×13. (Same evaluation setup as before, but with 40 test examples per cell.)

[Eiko Fried @EikoFried]

1/3 Tutorial on exploring ecological momentary data is online at AMPPS, with:
-Accessible ways to visualize data for better understanding
-Models to get some first insights
-Further reading boxes for more advanced topics
-Reproducible pipeline you can run over your own data

[MH Manuel Haqiqatkhah @_psyguy]

@EikoFried I wish I were Danish now 😅.

[MH Manuel Haqiqatkhah @_psyguy]

Thanks for reading this #thread!
In a subsequent working paper, we are exploring testing for the presence of cycles in multilevel (physiological) data, correctly estimating ψ and its CIs at levels 1 & 2, and understanding level-2 correlations with ψ.
So stay tuned, #PsychTwitter!

[MH Manuel Haqiqatkhah @_psyguy]

Studying circadian rhythms in #ESM is getting popular in #EmotionDynamics research as peak timing may have substantive value.
In this #preprint we show how some papers mislocate the peak & argue why even its correct estimation is less useful than expected.
https://t.co/CD7Bxbf7Yf

[MH Manuel Haqiqatkhah @_psyguy]

And even if we let go of the supposed substantive interpretation of the cosinor parameters (& use it, e.g., to correct for daytime trends in AR models) it has very strong—and unrealistic—restrictions on the trend shape, making #CosinorAnalysis a bad choice for such scenarios too.