[Jacob's Field]

Cleveland Chapter of the ASA

Thirtieth seminar in a series on

Tools for Regaining the Competitive Edge

Dedicated to the memory of
Jerry Senturia
ASA Fellow, founder of this seminar series

Friday, May 13, 2016


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Working With Categorical Variables:
Loglinear Model, Association Graph, and Multigraph

A One-Day Seminar Taught by

Harry J. Khamis, Ph.D., PStat.

About the Seminar:

Working with categorical variables can be tricky. This course will provide the attendee with the statistical tools needed to glean information from categorical data accurately, and to avoid the pitfalls that can occur when working with such data. The presentation contains no theory, proofs, heavy calculations, or extensive derivations. Rather, the emphasis will be on concepts, practical application, and interpretation. Real-data examples, mostly from the Wright State University Statistical Consulting Center, will be used throughout the presentation to illustrate the principles and techniques. The loglinear model will be derived from first principles, so no more than a basic knowledge of statistical principles and techniques is required to follow the material presented in this course.

This short course is based on the monograph: The Association Graph and the Multigraph for Loglinear Models (SAGE Publications, Inc., 2011) by Harry J. Khamis.

About the Instructor


Harry J. Khamis is an Emeritus Professor in the Department of Mathematics & Statistics with a joint appointment in the Boonshoft School of Medicine at Wright State University, Dayton, Ohio. He received a B.S. degree in mathematics at Santa Clara University, and an M.S. degree in mathematics and Ph.D. degree in statistics at Virginia Tech. He has been at Wright State University since 1980 except for teaching, research, and consulting visiting positions at Uppsala, Umeň, and Dalarna Universities in Sweden. Dr. Khamis was Director of the Statistical Consulting Center at Wright State University 1993-2015. He is a Fellow of the American Statistical Association.

Dr. Khamis specializes in statistical methodology, especially categorical response models, goodness of fit tests, and the Cox regression model. In addition to teaching and research, Dr. Khamis also consults extensively with researchers at the university as well as clients external to the university. Major external clients include Astra-Arcus Pharmaceuticals, B.F. Goodrich, Cancer Prevention Institute, Carnation Co., Center for Election Integrity, Clinical Research Consultants, Community Blood Center, Genentech Inc., Isolab Inc., Kunesh Eye Surgery Center, Mandal Diabetes Research Institute, Nestle's, Pharmacia-Upjohn Pharmaceuticals, and Sifo Marketing Research. Dr. Khamis is the co-developer of the "Khamis-Roche Stature Prediction Model" and is developer of the "Two-Stage Delta-Corrected Kolmogorov-Smirnov Goodness of Fit test".

In his spare time, Harry plays bridge (bronze life master) and participates in Scottish Country dancing and Scandinavian dancing (receiving the "Big Silver Medal" in Swedish dancing from the Svenskas Ungdomsringen f÷r Bygdekulture in 1999).

Location and Time:

  • Date: Friday, May 13, 2016
  • Time: 8:30am - 4:30pm
  • Location: Holiday Inn
    6001 Rockside Road (I-77 exit 155)
    Independence, OH
    Phone: (216) 524-8050 X298

Agenda for the Day
8:30-9:00 Registration with Continental Breakfast
9:00-10:20 Structures of association: odds ratio, two-way tables, three-way tables
Loglinear model: introduction, two-way tables
10:20-10:40 Refreshment Break
10:40-12:00 Loglinear Model: three-way tables, K-way tables, properties, model-fitting
12:00-1:00 Lunch Break
1:00-2:30 Basic graph theory principles, development of the association graph, using the association graph to analyze and interpret loglinear models
2:30-2:50 Refreshment Break
2:50-4:30 Development of the multigraph, use of the multigraph to analyze and interpret loglinear models


Full participation in this seminar can result in Recertification Units (R.U.s) earned towards maintenance of ASQ certification requirements.

Registration Fee
(includes choice of lunch--penne chicken broccolini or pasta primavera) :

  • Until 4/22
  • ASA/ASQ Member $170
  • Non-member $200
  • Full time student $80
  • From 4/22 through 5/5
  • ASA/ASQ Member $220
  • Non-member $250
  • Full time student $110

No New Reservations at the Door

Registration Deadline is May 5, 2016

Refunds Cannot Be Made After May 5, 2016

Seminar Brochure in downloadable PDF format

Seminar Brochure 2016 (includes Registration Form)

On-line Registration link

On-line Registration Link


Holiday Inn
6001 Rockside Road (I-77 exit 155)
Independence, OH 44131
Phone: (216) 524-8050 X298

There is a block of rooms reserved for $95.00 + tax, double or single occupancy. Reduced rate is available until May 1. Be sure to mention that you are with the Cleveland Chapter of ASA.

Complimentary shuttle service is available from Cleveland Hopkins Airport from 6:00am to 10:30pm. Phones are in the Baggage Claim area, lower level.