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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), 2011 - present

Society for Research on Educational Effectiveness (SREE), 2008 - present

American Education Research Association (AERA), 2010 - present

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.