On Feb. 1, 2025, ARRT will begin using a new cut score for the Nuclear Medicine Technology examination. Although we will continue to report the exam’s cut score as a scaled score of 75, the minimum number of correct items necessary to meet this passing threshold would be approximately thirteen more than in the past. The revised cut score reflects new performance expectations for entry-level technologists and replaces the previous cut score set in 2020.
Why the Change?
Since 2020, the types of nuclear medicine technology exams - as well as the skills and knowledge needed to perform these procedures safely and effectively - have changed. When changes take place, or when it’s been some time since we last evaluated the cut score for an exam, ARRT conducts a standard-setting study.
In psychometrics, we consider periodic evaluation of cut scores a best practice. Such studies re-evaluate the level of performance necessary to pass an ARRT exam. They give us confidence that cut scores are valid measurements of who should and should not earn ARRT credentials.
What is a Cut Score?
A cut score is the number of correct answers needed to pass an exam. A passing score shows that a candidate has mastered adequate knowledge to be considered qualified to perform the role safely and effectively.
How did ARRT Determine the New Cut Score?
To determine an appropriate cut score, our Nuclear Medicine Technology Standard Setting Advisory Committee members reviewed each question from a representative version of the exam and rated the likelihood that a minimally qualified candidate would answer it correctly. That process required multiple rounds of ratings and incorporated in-depth discussions with other committee members. The goal was to determine what level of exam performance would demonstrate sufficient knowledge and skills for a candidate to be certified and registered as an entry-level nuclear medicine technologist.
The advisory committee ultimately submitted its recommendations for the cut score to ARRT’s Board of Trustees. The Board reviewed all information from the standard setting study and the committee recommendation before adopting a revised cut score.
What Effect Will the Change Have?
The standard-setting process helps to ensure that our exam appropriately measures who should and should not become certified and registered in nuclear medicine technology. We anticipate that the new cut score and our new performance expectations will lead to a decrease in the percentage of candidates who pass the Nuclear Medicine Technology exam.