Contact Us

We welcome your thoughts and ideas. We’d like to know for what purposes you are using the ESI, how it has helped you, and what we can do to make it better. Please contact us via email:


Information about the developers of Gardner’s Effect Size Illustrator:


David Gardner, BSc Pharm, PharmD, MSc

Professor, Department of Psychiatry and College of Pharmacy

Dalhousie University

Halifax, Nova Scotia, CANADA


Andrea Murphy, BSc Pharm, PharmD

Associate Professor, School of Nursing

Dalhousie University

Halifax, Nova Scotia, CANADA


We gratefully acknowledge:


Mathresources Inc. ( and MedIT of Dalhousie University ( for the technical development of the program and website;


Melissa Hawkins and Jonathan Melong for their assistance with the design and content of the ESI;


and The Nova Scotia Health Research Foundation ( for their grant supporting the development of version 1.1 of the effect size illustrator.