All Stories

  1. Identifying the 50 most productive researchers in top-tier, broad-scope educational psychology journals (2017–2022): a new perspective with a focus on publication trends and diversity

    Article • Frontiers in Psychology, March 2026, Frontiers

    Lena Keller

  2. Across 90 countries, math anxiety is linked to lower math achievement

    Article • Psychological Bulletin, February 2026, American Psychological Association (APA)

    Lena Keller

  3. A process‐oriented perspective on pre‐service teachers' self‐efficacy and their motivational messages: Using large language models to classify teachers' speech

    Article • British Journal of Educational Psychology, April 2025, Wiley

    Lena Keller

  4. Who Are the 50 Most Productive Researchers in Top-Tier Educational Psychology Journals From 2017 to 2022? A New Perspective with a Focus on Publication Trends and Diversity

    Article • January 2024, Center for Open Science

    Lena Keller

  5. Intersectionality in Educational Contexts

    Article • Zeitschrift für Experimentelle Psychologie, January 2024, Hogrefe Publishing Group

    Lena Keller

  6. The Relationship Between Math Anxiety and Math Achievement: Novel and Robust Evidence From A Meta-Analysis of Individual Participant Data From International Large-Scale Assessments

    Article • December 2023, Center for Open Science

    Lena Keller

  7. Educational Inequalities at the Intersection of Multiple Social Categories: An Introduction and Systematic Review of the Multilevel Analysis of Individual Heterogeneity and Discriminatory Accuracy (MAIHDA) Approach

    Article • Educational Psychology Review, March 2023, Springer Science + Business Media

    Lena Keller

  8. Meta‐analyzing individual participant data from studies with complex survey designs: A tutorial on using the two‐stage approach for data from educational large‐scale assessments

    Article • Research Synthesis Methods, July 2022, Wiley

    Lena Keller

  9. Educational Inequalities at the Intersection of Multiple Social Categories: An Introduction and Systematic Review of the Multilevel Analysis of Individual Heterogeneity and Discriminatory Accuracy (MAIHDA) Approach

    Article • May 2022, Center for Open Science

    Lena Keller

  10. Noticing and weighing alternatives in the reflection of regular classroom teaching: Evidence of expertise using mobile eye-tracking

    Article • Instructional Science, December 2021, Springer Science + Business Media

    Lena Keller

  11. Top-performing math students in 82 countries: An integrative data analysis of gender differences in achievement, achievement profiles, and achievement motivation.

    Article • Journal of Educational Psychology, October 2021, American Psychological Association (APA)

    Lena Keller

  12. Meta-Analyzing Individual Participant Data From Studies With Complex Survey Designs: A Tutorial on Using the Two-Stage Approach for Data From Educational Large-Scale Assessments

    Article • October 2021, Center for Open Science

    Lena Keller

  13. Nonlinear relations between achievement and academic self-concepts in elementary and secondary school: An integrative data analysis across 13 countries.

    Article • Journal of Educational Psychology, April 2021, American Psychological Association (APA)

    Lena Keller

  14. Top-Performing Math Students in 82 Countries: An Integrative Data Analysis of Gender Differences in Achievement, Achievement Profiles, and Achievement Motivation

    Article • May 2020, Center for Open Science

    Lena Keller

  15. Geschlechtsunterschiede in der kindlichen MINT-Lernmotivation: Forschungsbefunde zu bestehenden Unterschieden und Einflussfaktoren

    Article • Diskurs Kindheits- und Jugendforschung / Discourse Journal of Childhood and Adolescence Research, March 2020, Barbara Budrich Publishers

    Lena Keller

  16. Nonlinear Relations Between Achievement and Academic Self-Concepts in Elementary and Secondary School: An Integrative Data Analysis Across 13 Countries

    Article • August 2019, Center for Open Science

    Lena Keller

  17. Do stereotypes strike twice? Giftedness and gender stereotypes in pre-service teachers’ beliefs about student characteristics in Australia

    Article • Asia-Pacific Journal of Teacher Education, February 2019, Taylor & Francis

    Dr Leonie Kronborg, Lena Keller

  18. Profile formation of academic self-concept in elementary school students in grades 1 to 4

    Article • PLOS One, May 2017, PLOS

    Lena Keller