Contact information

Russell V. Lenth (he/him/his)
Department of Statistics and Actuarial Science
The University of Iowa
Iowa City, IA 52242

russell-lenth[at]uiowa.edu
319-335-0712 (Dept. Office)

Past Research

  • Experimental design
  • Sample size and power
  • Statistical methods for quality improvement
  • Statistical computing and graphics

Biological sketch

Software

emmeans

Estimated marginal means (R)SiteCRANGitHub

estimability

Assessing estimability (R)SiteCRANGitHub

rsm

Response-surface methods (R)SiteCRANGitHub

unrepx

Unreplicated experiments (R)SiteCRANGitHub

lsmeans

Least-squares means (R) CRANGitHub

Piface

Power and sample size (Java)  GitHub

Department Events

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Retiree Events

UIRA Annual Meeting promotional image

UIRA Annual Meeting

Tuesday, June 30, 2026 12:30pm to 1:30pm
University Capitol Centre

Date: Tuesday, June 30
Time: 1:00-2:30 p.m.
Location: Room 2520-D, University Capitol Centre (UCC), 200 South Capitol St., Iowa City, and via Zoom

Complimentary ice cream and cookies will be offered from 12:30–1:00 p.m. for attendees.
👉 Please RSVP online by June 15.

Please plan to join us for the UIRA Annual Meeting as we celebrate the accomplishments of the past year with fellow members. The meeting will include introductions of the new board officers and directors, recognition of the 2026 Service...