Marc Colomer (@MarcColomer9) header
Marc Colomer (@MarcColomer9) profile picture

Marc Colomer

@MarcColomer9

Cognitive scientist studying how children learn math | PhD, Center for Brain and Cognition (UPF) | Postdoc @UChicago | Head of Research, Innovamat Research Lab.

 Barcelona (Europe)
innovamat.com/en/innovamat-research-lab/?utm_source=X&utm_medium=social&utm_campaign=col
Joined March 2020
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Most math programs claim to have an impact. But how can teachers and school leaders tell which claims actually hold up? With Carles Aulés Blancher (@carles_aules) and Caterina Calsamiglia (@ccalsamig), we wrote a guide to help answer that question. 🧵
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This is the first report in the Innovamat Research Series: “Does It Work? How to Assess the Evidence Behind a Mathematics Program”. Reports that bring research on how children learn math to the people who make decisions in education.
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Read the full report here👇 📄qr.innovamat.com/bh4W6q
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Marc Colomer retweeted
Lucía (@LuciaCobreros) profile picture
Lucía@LuciaCobrerosSep 23
💭 New working paper with the Innovamat Research Lab. PISA '25 reports that the socioeconomic gap narrowed because top-quartile students fell most We test whether this may be reflecting changes in how the index (ESCS) that sorts students into socioeconomic quartiles is measured.
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Kiko Llaneras (@kikollan) profile picture
Kiko Llaneras
@kikollanSep 23
Ojo: ¿Espejismo en PISA? 😮 El informe reportaba algo inédito: los estudiantes de alto nivel socieconómico (Q4) caían MÁS que el resto. “[A] new phenomenon of affluent students who struggle”. Problema: quizás NO era cierto. Un trabajo publicado hoy explica que el bajón se debe a un *cambio de métodos* en PISA. La definición de nivel socioeconómico es distinta en 2022 y 2025. Y aquí está la clave: si se usa una definición igual en las dos oleadas, los niños del Q4 ya no caen más. El "fenómeno" desaparece por completo. En esencia, el cambio movería niños entre viejos y nuevos Q1-Q4. Antes pesaba más el capital cultura y ahora las posesiones. Ejemplo: tener libros en casa vs. tener piscina. Asumo que lo primer predice mejores notas. Es plausible esto: el cambio llevó niños del viejo Q4 —y buenas notas— al Q1-Q3, y por eso veríamos un bajón artificial del Q4. Lo explican con detalle @LuciaCobreros, @lucas_gortazar @ecorreig y colegas en un paper de @innovamat.
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Excited to read this. We often focus on the psychometrics, but constructing comparable demographic measures over time is also essential for subgroup trend analysis.
Lucas Gortazar (@lucas_gortazar) profile pictureLucas Gortazar@lucas_gortazarSep 23
1/ PISA 2025 says advantaged students fell more than disadvantaged ones. Today we publish a paper explaining t's a measurement change. Measure students the same way in both years and the top-quartile drop in maths goes from −14 to −6 points. 🧵
Image from Lucas Gortazar (@lucas_gortazar)
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1/ PISA 2025 says advantaged students fell more than disadvantaged ones. Today we publish a paper explaining t's a measurement change. Measure students the same way in both years and the top-quartile drop in maths goes from −14 to −6 points. 🧵
Image from Lucas Gortazar (@lucas_gortazar)
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B.Palop (@bpalop) profile picture
B.Palop@bpalopSep 23
Impresionante este error que ha pillado a PISA el equipo de @innovamat_es innovamat.com/blog/brecha-so… cadenaser.com/nacional/2026/…
Por qué la brecha socioeconómica de la OCDE no se ha reducido: un cambio de medición, no de...

Por qué la brecha socioeconómica de la OCDE no se ha reducido: un cambio de medición, no de...

Un estudio del Innovamat Research Lab revela que la brecha socioeconómica de la OCDE no se ha reducido en PISA 2025: la caída del alumnado acomodado es un artefacto de medición.

innovamat.com
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Espectacular trabajo de @lucas_gortazar y @LuciaCobreros junto a los equipos de @innovamat_cat y @EsadeEcPol. Han encontrado un error en los cálculos hechos por la OCDE en uno de los resultados centrales de PISA: la fuerte caída de aprendizaje en los alumnos aventajados (que se había asociado al posible mayor uso de la IA). Han identificado un error de medición y publican un paper importante que ya recogen todos los medios. Enhorabuena!👇🏻👇🏻👇🏻
Lucas Gortazar (@lucas_gortazar) profile pictureLucas Gortazar@lucas_gortazarSep 23
1/ PISA 2025 says advantaged students fell more than disadvantaged ones. Today we publish a paper explaining t's a measurement change. Measure students the same way in both years and the top-quartile drop in maths goes from −14 to −6 points. 🧵
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(1) New paper out at Scientific Reports! We found that infants’ event-related neural activity at 9 months predicted their executive function skills 4 years later. Read it here: nature.com/articles/s41598-0…
Investigating neural correlates of attention in relation to the development of executive functions...

Investigating neural correlates of attention in relation to the development of executive functions...

Scientific Reports - Investigating neural correlates of attention in relation to the development of executive functions in early childhood

nature.com
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(2) The brain-behavior longitudinal relation was specific to frontal theta, a higher-order marker of neural activity typically associated with top-down attention.
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(3) Congratulations to Abigaël Thinakaran and the entire research team at the University of Chicago for their contributions to this work!
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T'interessen l'educació i la recerca? A @innovamat busquem un investigador amb experiència amb mètodes mixtos (qualitatius i quantitatius)! -- Are you passionate about education and experienced in mixed research methods? Innovamat is hiring! careers.innovamat.com/jobs/6…
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Moltes felicitats a la Núria Sebastián-Gallés per rebre el Premi Nacional de Recerca de Catalunya!! Quin orgull. @cbcUPF @UPFBarcelona
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Here we go! @SRCDtweets
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Marc Colomer retweeted
Innovamat (@innovamat_cat) profile picture
Innovamat
@innovamat_cat29 Apr 2025
🎓🧠 Aquesta setmana, el nostre director de recerca, @MarcColomer9, serà a Minneapolis per participar en un dels esdeveniments més prestigiosos en desenvolupament infantil: la conferència de la Society for Research in Child Development (@SRCDTweets). 👇
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Marc Colomer retweeted
Innovamat (@innovamat_es) profile picture
Innovamat
@innovamat_es29 Apr 2025
🎓🧠 Esta semana, nuestro director de investigación, @MarcColomer9, estará en Minneapolis para participar en uno de los eventos más prestigiosos sobre desarrollo infantil: la conferencia de la Society for Research in Child Development (@SRCDTweets). 👇
Image from Innovamat (@innovamat_es)
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