Rebuttal Expert Witness

Rhonda Harper is an expert witness who has rebutted more than 75 surveys and marketing reports. She crafts strong, effective rebuttal opinions based on solid expertise and experience, utilizing marketing principles and models, professional research standards, and litigation requirements.  

Regarding survey rebuttals, Rhonda Harper follows the standards set by Dr. Shari S. Diamond and Jerre B. Swann, among others, to ensure the validity of her research studies and those she is rebutting. These standards require:

• An appropriate universe selection and sampling frame;
• A rigorous and valid survey design that is probative of the relevant issues in a case;
• An inclusion of representative, qualified respondents;
• Use of procedures to minimize potential biases in data collection;
• Use of objective, non-leading questions;
• Use of procedures to reduce guessing among respondents; and
• A full analysis and a reporting of survey data.