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

PhD Defense - Anh Nguyen

Monday, April 20, 2026 2:30pm to 4:30pm
Schaeffer Hall
PhD Defense - Anh Nguyen

PhD Defense - Yikai Zhang

Tuesday, April 21, 2026 9:00am to 11:00am
Virtual
PhD Defense - Yikai Zhang

Yuexi Wang - Colloquium Speaker

Thursday, April 23, 2026 3:30pm to 4:30pm
Schaeffer Hall
Yuexi Wang - Colloquium Speaker

Retiree Events

History of the Pledge of Allegiance promotional image

History of the Pledge of Allegiance

Thursday, May 21, 2026 1:00pm to 2:00pm
University Capitol Centre

Date: Thursday, May 21 | 1:00–2:00 p.m.
Location: Room 2520-D, University Capitol Centre (UCC), 200 South Capitol St., Iowa City, and via Zoom

Professor Allan W. Vestal, Professor Emeritus and former Dean of the College of Law at Drake University, will present on the history of the Pledge of Allegiance.

We hope to see you there!

UIRA Program Committee

UIRA Annual Meeting promotional image

UIRA Annual Meeting

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

Date: Tuesday, June 30 | 12:30–1:30 p.m.
Location: Room 2520-D, University Capitol Centre (UCC), 200 South Capitol St., Iowa City, and via Zoom

More details will be shared soon.

We hope to see you there!

UIRA Program Committee