Karl Gustav Jöreskog

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Karl Gustav Jöreskog
Born (1935-04-25) 25 April 1935 (age 79)
Åmål, Sweden
Residence Uppsala, Sweden
Citizenship Sweden
Nationality Swedish
Fields Statistics
Institutions Uppsala University
Educational Testing Service
Alma mater Uppsala University
Doctoral advisor Herman Wold
Known for Linear structural equation models
LISREL software
Maximum likelihood factor analysis
Influences Peter Whittle

Karl Gustav Jöreskog (born 25 April 1935) is a Swedish statistician. Jöreskog is a Professor Emeritus at Uppsala University, and a co-author (with Dag Sörbom) of the LISREL statistical program. He is also a member of the Royal Swedish Academy of Sciences. Jöreskog received his bachelor's, master's, and doctoral degrees in Uppsala University. He is also a former student of Herman Wold. He was a statistician at Educational Testing Service (ETS) and a visiting professor at Princeton University.


Jöreskog proposed a reliable numerical method for computing maximum-likelihood estimates in factor analysis; similarly reliable methods were also proposed by Gerhard Derflinger, Robert Jennrich, and Stephen M. Robinson at roughly the same time. Jöreskog's Fortran codes helped to popularize factor analysis around the world. While working at the Educational Testing Service and giving lectures at Princeton University, Jöreskog proposed a linear model for the analysis of covariance structures, a fundamental contribution to structural equation modeling (SEM).

His other research interests include multivariate analysis, item response theory, statistical computing, and factor-analysis in geology.


In 2007 Jöreskog received the Award for distinguished scientific applications of psychology[1] from the American Psychological Association (APA).

Selected bibliography[edit]

  • Jöreskog, K. G. (1969). A general approach to confirmatory maximum likelihood factor analysis. Psychometrika, 34, 183–202.
  • Jöreskog, K. G. (1970). "A general method for analysis of covariance structures". Biometrika 57: 239–251. doi:10.1093/biomet/57.2.239. 
    • Reprinted as Jöreskog, K. G. (2001). "A general method for analysis of covariance structures". In D. M. Titterington and D. R. Cox. Biometrika: One Hundred Years. Oxford University Press. pp. 345–357. ISBN 0-19-850993-6. 
  • Jöreskog, K. G., & Sörbom, D. (1979). Advances in factor analysis and structural equation models. New York: University Press of America.
  • Jöreskog, K. G., & Moustaki, I. (2001). Factor analysis of ordinal variables: A comparison of three approaches. Multivariate Behavioral Research, 36, 347–387.


  • Cudeck, R., Jöreskog, K. G., Du Toit, S. H. C., & Sörbom, D. (2001). Structural Equation Modeling: Present and Future : a Festschrift in Honor of Karl Jöreskog. Scientific Software International.


  1. ^ Karl G. Jöreskog: Award for Distinguished Scientific Applications of Psychology. American Psychologist, 62, 768-769.

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