The RefreshRD Research Study

We're in the process of conducting an exciting research project about the effects of tutoring on RD exam pass rates! 

Rationale: Dietetic students who have completed their internships or coordinated programs are eligible to sit for the RD Exam, but they may need extra assistance in order to pass. There are many popular sources that students utilize as their primary and supplementary study materials, and each of these materials is an investment. These resources can provide students with outlines and practice questions, and some have tutoring services available. However, these programs don't often publish the pass/fail rates of their students. Statistics show that RD exam pass rates have been declining over the past few years - in 2018 between January 1st and June 30th, the pass rate was 56%, down from 68% in 2017 and 72% in 2016. With the demand for dietitians increasing and a projected growth of 15% from 2016 to 2026, the pass rate of students will become even more important.

RefreshRD is a tutoring and test preparation company that provides students with optimum study packages to fit their individual needs to improve their time management, enhance study skills, build knowledge and confidence, and pass the Registered Dietitian Exam whether they are taking it for the first time or after multiple attempts. The goal of this research is to provide statistics of the program and to determine the overall impact tutoring has on the pass rates of students, while acknowledging merging outside resources with their own.   



The graph presents the pass rate percentage of repeat test takers published by the Commission on Dietetic Registration from 2016 to 2018 compared with RefreshRD’s pass rate percentage of repeat test taker students on the registered dietitian examination. The pass rates of repeated test takers are the focus due to the majority of RefreshRD’s student population being repeat test takers (95.8%), based on the total number of students who took the exam between 2016 and 2018. This includes students who failed the exam the prior year and then passed it the following year. Each student is provided with a unique tutoring package aimed to fit their individual needs. RefreshRD’s average repeat test taker pass rate between 2016 and 2018 was ~1.7x higher with the intervention of tutoring applied  (65.9%) than CDR’s average repeat test taker pass rate (38.4%).


This analysis provides a snapshot of the pass rates of the number of students who were or currently using RefreshRD and took the RD exam at least once when using RefreshRD as a resource between 2016-18. From this analysis, the impact of tutoring on RefreshRD’s repeat test takers average pass rate is ~1.7x higher than CDR’s average repeat test takers' pass rates (2016-18), meeting the goal of improving the passing rate of repeat test takers. One limitation is that the majority of RefreshRD students are repeat test takers at 95.8%, however one of the aims of RefreshRD is to help those who have not passed the RD exam after multiple attempts. Another limitation is that exam outcomes are self-reported data. Additionally, not all students' repeated test outcomes were available. Another limitation is  that RefreshRD began in 2016 and not many students were enrolled, therefore, only a small population of repeat test takers were available to analyze (n=46) in comparison to CDR’s repeat test takers averaged between 2016-18 (n=2,150). However, RefreshRD has almost doubled the amount of students each year who have taken the exam using their tutoring methods since 2017, therefore increasing the reliability of the effectiveness of tutoring overtime. 


The information provided on our website is true and complete. RefreshRD has made every attempt to ensure the accuracy and reliability of information and data analyses provided on its website. All CDR data was obtained at This data is intended only for the use of showing the impact RefreshRD tutoring has on the pass rates of participants taking the Registered Dietitian Examination, specifically for those who are repeat test takers.