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

Final Exam Week - May 11-15

Tuesday, May 12 to Friday, May 15, 2026 (all day)
Schaeffer Hall
Monday, May 11, 2026 - Friday, May 15, 2026

Final Exam Week - May 11-15

Wednesday, May 13 to Friday, May 15, 2026 (all day)
Schaeffer Hall
Monday, May 11, 2026 - Friday, May 15, 2026

Final Exam Week - May 11-15

Thursday, May 14 to Friday, May 15, 2026 (all day)
Schaeffer Hall
Monday, May 11, 2026 - Friday, May 15, 2026

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
Time: 1:00–2:00 p.m.
Location: Room 2520-D, University Capitol Centre (UCC), 200 South Capitol St., Iowa City, and via Zoom
RSVP Link: History of Allegiance RSVP form

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

👉 Please RSVP via the RSVP Form.

Complimentary ice cream and cookies will be offered from 12:30–1:00 p.m. for attendees.

Please plan to join us on Tuesday, June 30 for the UIRA Annual Meeting in Room 2520-D at the University Capitol Center (2nd floor of the UCC). Social time, with ice cream and cookies, begins at 12:30 p.m. followed by the business...