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L. Elizabeth Tipton

Professional Background

Educational Background

Ph.D. Statistics, Northwestern University, Evanston, IL, 2011
Thesis Title: Methods for Generalizing from Experiments
Thesis Advisor: Larry V. Hedges

M.A. Sociology, University of Chicago, Chicago, IL, 2005

B.A. Mathematics, Transylvania University, Lexington, KY, 2001

Scholarly Interests

The design and analysis of large scale experiments; External validity issues in experiments; Causal inference; and Meta-analysis.

Selected Publications

Tipton, E. (in press) Small sample adjustments for robust variance estimation with meta-regression. Psychological Methods.


Tipton, E., Hedges, L.V., Vaden-Kiernan, M., Borman, G.D., Sullivan, K. & Caverly, S. (in press) Sample selection in randomized experiments: A new method using propensity score stratified sampling. Journal of Research on Educational Effectiveness.


Tanner-Smith, E. & Tipton, E. (in press) Robust variance estimation with dependent effect sizes: Practical considerations and a software tutorial in Stata and SPSS. Research Synthesis Methods.


Tipton, E. (2013) Robust variance estimation in meta-regression for binary dependent outcomes. Research Synthesis Methods, 4(2): 169-187.


Tipton, E. (2013) Improving generalizations from experiments using propensity score subclassification: Assumptions, properties, and contexts. Journal of Educational and Behavioral Statistics, 38: 239-266.

Uttal, D.H., Meadow, N.G., Tipton, E., Hand, L.L., Alden, A.R., Warren, C., & Newcombe, N.S. (2013) The malleability of spatial skills: A meta-analysis of training studies. Psychological Bulletin, 139(2): 352-402.


de Vibe, M., Bjorndal, A., Tipton, E., Hammerstrom, K., & Kowalski, K. (2012) Mindfulness based stress reduction (MBSR) for improving health, quality of life and social functioning in adults. Campbell Systematic Reviews, 2012:3. (download at:


Hedges, L.V., Tipton, E., and Johnson, M.C. (2010) Robust variance estimation in meta-regression with dependent effect size estimates. Research Synthesis Methods. 1(1): 39-65. Erratum in 1(2): 164-165.


Hedges, L. V. & Tipton, E. (2010). Meta-analysis in behavioral medicine. In A. Steptoe (Ed.) The handbook of behavioral medicine. London: Springer-Verlag.


professional organization membership

Association for Public Policy Analysis and Management (APPAM)

American Education Research Association (AERA)

American Statistical Association (ASA)

Society for Research on Educational Effectiveness (SREE)

professional presentations

HUDM 5122: Applied regression analysis

Prerequisite: HUDM 4122 or permission of instructor. Least squares estimation theory. Traditional simple and multiple regression models and polynomial regression models, with grouping variables including one-way ANOVA, two-way ANOVA, and analysis of covariance. Lab devoted to applications of SPSS regression program. Lab fee: $50.