• 26947 Citations
1976 …2020

Research output per year

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Personal profile

Research Interests

Professor Hedges’ research interests are in the development and application of statistical methods for the social, medical, and biological sciences. One major are of interest is the combination of results across studies to draw general conclusions (meta-analysis). Another major area of research is the design and analysis of social experiments. He works on the development of statistical methods in both of these areas and their application to policy research, particularly education policy. Prof. Hedges also works on the role of uncertainty in cognitive science, trying to understand how human cognition is shaped by the fact that it involves processing of information memory and perception that is inherently uncertain. Finally, he works on the demography of human abilities, including the understanding of differences between social groups and variation of abilities and measured achievement.

Education/Academic qualification

Mathematical Methods in Educational Research, PhD, Stanford University

… → 1980

Statistics, MA, Stanford University

… → 1980

Mathematics, BA, University of California, San Diego

… → 1978

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  • Research Output

    Investigating immediacy in multiple-phase-change single-case experimental designs using a Bayesian unknown change-points model

    Natesan Batley, P., Minka, T. & Hedges, L. V., 2020, (Accepted/In press) In : Behavior Research Methods.

    Research output: Contribution to journalArticle

  • 1 Scopus citations

    Consistency of effects is important in replication: Rejoinder to Mathur and VanderWeele (2019)

    Hedges, L. V. & Schauer, J. M., Oct 1 2019, In : Psychological methods. 24, 5, p. 576-577 2 p.

    Research output: Contribution to journalComment/debate

  • How to Do a Systematic Review: A Best Practice Guide for Conducting and Reporting Narrative Reviews, Meta-Analyses, and Meta-Syntheses

    Siddaway, A. P., Wood, A. M. & Hedges, L. V., Jan 4 2019, In : Annual review of psychology. 70, p. 747-770 24 p.

    Research output: Contribution to journalReview article

  • 67 Scopus citations

    More Than One Replication Study Is Needed for Unambiguous Tests of Replication

    Hedges, L. V. & Schauer, J. M., Oct 1 2019, In : Journal of Educational and Behavioral Statistics. 44, 5, p. 543-570 28 p.

    Research output: Contribution to journalArticle