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

Ajay Subramaniam - Actuarial Science Seminar

Tuesday, November 17, 2026 11:00am to 12:00pm
Schaeffer Hall
Ajay Subramaniam - Actuarial Science Seminar

Ray Bai - Colloquium Speaker

Thursday, November 19, 2026 3:15pm to 4:30pm
Virtual
Ray Bai - Colloquium Speaker

Thanksgiving - Office Closed

Thursday, November 26, 2026 (all day)
Schaeffer Hall

Retiree Events

Insurance Updates promotional image

Insurance Updates

Friday, October 16, 2026 12:30pm to 1:30pm
Virtual

Date: Friday, October 16
Time: 12:30–1:30 p.m.
Location: Room 2520-D, University Capitol Centre (UCC), 200 South Capitol St., Iowa City, & via Zoom
👉 RSVP by October 13.

A light lunch will be available for in-person attendees starting at 12:00 p.m.

As health care open enrollment begins, Rebecca Olson, senior director of Benefits, University of Iowa Human Resources, will present an overview of the UI’s 2026–27 enrollment options available to UI retirees.

Kevin Ward, Senior Health Insurance Information...

Writing and Reading in Our City of Literature promotional image

Writing and Reading in Our City of Literature

Monday, November 9, 2026 12:30pm to 1:30pm
Virtual

Date: Monday, November 9
Time: 12:30–1:30 p.m.
Location: Room 2520-D, University Capitol Centre (UCC), 200 South Capitol St., Iowa City, & via Zoom
👉 RSVP by November 4.

Coffee and cookies will be available for in-person attendees starting at 12:00 p.m.

We all take pride in Iowa City's designation as a World City of Literature. So what's happening now with Iowa writers and Iowa-themed books? Professor Loren Glass, Department of English, and Prairie Lights Bookstore owner Jan Weissmiller will share...

Where Healing Meets the Herd: Human-Horse Interactions in Mental Health Care promotional image

Where Healing Meets the Herd: Human-Horse Interactions in Mental Health Care

Thursday, November 19, 2026 1:00pm to 2:00pm
Virtual

Date: Thursday, November 19
Time: 1:00–2:00 p.m.
Location: Room 2520-D, University Capitol Centre (UCC), 200 South Capitol St., Iowa City, & via Zoom
👉RSVP by November 16.

Complimentary coffee and cookies will be available for in-person attendees beginning at 12:30 p.m.

In this talk, UI Professor Katy Schroeder will explore the human–animal bond and its potential to promote mental health and enhance counseling outcomes. Drawing on her research with therapy horses, she will share insights into this...