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

Biographical 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

Patrick Breheny - Colloquium Speaker

Thursday, September 3, 2026 3:30pm to 4:30pm
Schaeffer Hall
Patrick Breheny - Colloquium Speaker
Colloquium - "Submodular optimization for epidemic applications" promotional image

Colloquium - "Submodular optimization for epidemic applications"

Friday, September 4, 2026 3:30pm to 4:30pm
Schaeffer Hall
UIowa Associate Professor, Bijaya Adhikari, offers strategies for choosing locations for disease surveillance and deciding how to distribute vaccines, especially when given a limited budget.

Labor Day - Office Closed

Monday, September 7, 2026 (all day)
Schaeffer Hall
Labor Day - Office Closed

Retiree Events

Active Lives, Healthy Brains: Wellness Tips for Brain Health in Aging promotional image

Active Lives, Healthy Brains: Wellness Tips for Brain Health in Aging

Wednesday, September 9, 2026 11:00am to 1:00pm
Virtual

Date: Wednesday, September 9, 2026
Time: 11:30 a.m.
Location: Room 2520-D, University Capitol Centre (UCC), 200 South Capitol St., Iowa City, and via Zoom
RSVP: RSVP for Active Lives, Health Brains

Coffee and cookies at 11 a.m. Program begins at 11:30 a.m.

Brain health is important at every age. Risk for Alzheimer's and related dementias affecting cognitive health increase in our 60s and accelerate in our 70s and 80s. Professor Michelle Voss, director of the University of Iowa's Health, Brain, and...

Pentacrest Tree Tour and UIRA Social promotional image

Pentacrest Tree Tour and UIRA Social

Thursday, September 17, 2026 3:30pm to 6:00pm
Macbride Hall (Meet in Front)

Date: Thursday, September 17, 2026

Time:
Pentacrest Tree Tour: 3:30–4:30 p.m.
UIRA Social: 4:30–6 p.m.

Location:
Pentacrest Tree Tour: Meet in front of Macbride Hall, 17 N. Clinton St., Iowa City, 52240
UIRA Social: The Airliner, 22 S. Clinton St., Iowa City, 52240

RSVP: RSVP for the Pentacrest Tree Tour and UIRA Social

Please join us for both events if you can, but we hope to see you even if you are able to attend only one.

Pentacrest Tree Tour

If you have joined Andrew Dahl, University of Iowa campus...

Fall Barn Party promotional image

Fall Barn Party

Friday, October 9, 2026 4:00pm to 6:00pm
Home of UIRA members Pam Terrill and Steve Scheckel

Date: Friday, October 9
Time: 4:00–6:00 p.m.
Location: Home of UIRA members Pam Terrill and Steve Scheckel, 4317 320th St. NE, Iowa City
👉 RSVP by October 2. Space is limited to 65 participants.

All UIRA members and friends are warmly invited to join us for a fun and festive fall gathering in a truly special setting—a 100+-year-old barn on the beautiful acreage of UIRA members Pam Terrill and Steve Scheckel, just two miles from downtown Iowa City (formerly the O’Mara Homestead).

Enjoy delicious food...