Hans Fredrik Sunde
@hfsunde
Postdoc at @theCEFH, interested in assortative mating, behavioural genetics, and methodological issues. Not active here, find me on the other place!
Our paper on indirect assortative mating is now out in @NatureComms! In it, we provide refined definitions of terms used to explain partner similarity, develop statistical models, and find evidence of surprisingly high social homogamy for education. Link: nature.com/articles/s4146…

Our new study is just out in Psychological Science! We study cognitive ability at age 18 and mental health 20 years later in 270k Norwegian men. We include different disorders, compare education by ability, and run sibling-fixed effects. Check it out here: doi.org/10.1177/095679…
🧵1/7 New study: How do adolescent cognitive ability and education predict adult mental disorders? 🧠📚➜🧑⚕️ Using Norwegian register data (N = 272,351 men) with GP diagnoses and military assessed cognitive abilities. 👇
New paper just out! It includes: - Assortative mating ✅ - Nature-nurture of social outcomes ✅ - "Things are complicated"-conclusion ✅ - Summary statistics available for reanalysis! ✅ Check @EivindY's thread for more:
1/🧵 Even more nature-nurture for school performance in @PNASNews! Nikolai Eftedal examined family resemblance in school performance in nearly 1 million students across their Norwegian relatives. doi.org/10.1073/pnas.2…
If you liked this quote from Conley, @tylercowen, you'll love this Figure from Sunde et al (2024) making the same point. Note the correlation between spouses' polygenic scores for education (.14) is higher than the correlation expected for 1st cousins under random mating (.125)!
Dalton Conley in genes-environment interaction marginalrevolution.com/marginalrevolu…
I was interviewed about our research into partner similarity and social differences by one of the main Norwegian science news sites: forskning.no/penger-og-priv…
Vi velger partnere som ligner oss selv, både når det gjelder psykiske og fysiske skavanker. forskning.no/penger-og-priv…
While we focus on health traits, we also report the partner correlation in GPA at age 16 (i.e., educational performance way before most partners met). This correlation is almost the same as years of education (.43 vs. .47), despite often being completed after partner formation.
Give Torvik, Sunde et all a follow if you are interested in behaviour genetics. The research on the mechanisms of assortative mating are one of the most interesting thing in BG right now. Besides ofc the missing heritability, which will probably never be solved.(Many Assumptions)
New paper! We look at partner similarity *before partner formation*, across health traits and education. Correlations across psychiatric traits are ubiquitous, become larger in established couples, and are only partly explained by education. See Fartein's🧵for more:
Important work on correlations between partners (assortative mating). These results show widespread assortment across educational and mental health traits that is not entirely explained by 'direct assortment', i.e. matching on measured phenotypes. This has important…
(1/10) Check out our new paper in Nature Communications! “Non-random mating patterns within and across education and mental and somatic health”. In the paper, we study partner similarities before they (were likely to have) met. nature.com/articles/s4146…
I'm happy @bernardo_josi has joined me in Oslo🇳🇴! As part of her PhD @NTRscience🇳🇱 on my ERC, she’ll spend 6mo at the Institute for Public Health. Excited to study intergenerational transmission of education w @farteinask @hfsunde & me using biorxiv.org/content/10.110… @ERC_Research
Neste onsdag (20. nov, kl. 9:00) skal jeg og kollegaer fra Folkehelseinstituttet presentere forskningsfunn om sosial ulikhet og mental helse på Kulturhuset i Oslo. fhi.no/om/kurs-og-kon…
Psykisk helse hos barn varierer sterkt etter foreldrenes inntekt og utdanning. Hvorfor er det sånn? I fire år har vi forsket på sosial ulikhet, psykisk helse og genetikk. Kom på Kulturhuset onsdag 20. november kl. 9, så får du høre hva vi har funnet ut! fhi.no/om/kurs-og-kon…
Psykisk helse hos barn varierer sterkt etter foreldrenes inntekt og utdanning. Hvorfor er det sånn? I fire år har vi forsket på sosial ulikhet, psykisk helse og genetikk. Kom på Kulturhuset onsdag 20. november kl. 9, så får du høre hva vi har funnet ut! fhi.no/om/kurs-og-kon…
Two perspectives on cocaine use among young adult in Norway. Data: fhi.no/contentassets/…
We are RECRUITING FOR A POSTDOC to join us at the SGDP Centre, IoPPN. Focus is on mental health, family data, quantitative genetics/epidemiology. Maternity cover with possibility of contract extension. Please share. kcl.ac.uk/jobs/098685-po…
Accompanying the preprint is an interactive figure where you can find the prevalence of all psychological codes in ICPC-2 across age and parental income: hfsu.shinyapps.io/prevalence_by_…
What explains the association between parental income and offspring psychiatric disorders, and can mechanisms change into adulthood? We investigated this using the entire Norwegian population and running children-of-twins models. Preprint and 🧵by lead author @hfsunde below!
We have a new preprint!📰Here, we describe the association between parental income and psychiatric disorders from childhood and into adulthood, and use children of twins and siblings to differentiate social selection from social causation (1/n)🧵 Link: doi.org/10.1101/2024.1…
Indeed, most introductory textbooks - and even professional philosophy handbooks - describe Popper using silly stereotypes. He is a pleasure to read, and @DavidDeutschOxf books makes critical rationalism even clearer still
So what does Popper actually write? Something much more nuanced, and smarter, than is attributed to him. *Observation is always selective*. I would not know how to argue with that! I wish more people would actually read Popper than rely on a Popperian stereotype.