Eligibility 
Any technologist who performs human bone densitometry scans and meets the eligibility requirements as specified on page 6 in the CBDT® Handbook.
Applying for the exam:
- All communication with candidates will be handled via e-mail only.
- The name on your application MUST match your ID.
- The application MUST be complete with application fee and a signature from the candidate’s supervisor.
- The candidate will also be required to read the following statements and agreements in full and digitally sign their agreement to all statements listed within the document.
- Once the candidate’s application has been reviewed and accepted, candidates will be sent an eligibility confirmation through email from PSI (no-reply@psiexams.com). After receiving the eligibility confirmation email, the candidate is responsible for contacting PSI to schedule their appointment.
- Approval for paper and pencil exams will be sent directly from ISCD.
Examination Results
Candidates will be notified in writing with a pass/fail score within four to six weeks following the date of the examination via postal service delivery. No results will be provided by telephone, fax, or email. Scores are released ONLY to the individual candidate.
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Certified Bone Densitometry Technologist (CBDT®) is a professional certification accredited by the National Commission for Certifying Agencies (NCCA) in the field of bone densitometry for technologists who perform bone densitometry scans. The CBDT® credential signifies that an individual has passed an examination that has been designed to meet established certification industry standards and best practices. The CBDT® Exam is offered at computer-based PSI locations worldwide. The ISCD CBDT® examination consists of multiple-choice questions based on 5 Content Outline domains.
The CBDT® examination will have a total of 150 multiple choice questions, 125 scored and 25 pretest questions. Of the 125 scored questions, 25 will be case-based multiple choice questions. Candidates will have three and a half hours to complete the examination.
Examination Development
A job analysis (sometimes referred to as a practice analysis, job task analysis, role delineation study, work analysis, or competency profiling) is a scientific inquiry conducted to identify the tasks and work activities conducted, the context in which those tasks and activities are carried out, and the competencies (knowledge areas, skills, and abilities) required to perform a job role successfully. Different methods can be used which may differ in the levels of specificity in analyzing and describing different work elements, with the choice of method largely dependent on the intended purpose and use of the results. The methodology of the current job analysis was tailored to the creation of exam specifications for test development.
The job analysis was conducted in accordance with principles and practices outlined in the Standards for Educational and Psychological Testing, which describe principles and guidelines for all aspects of test development, including content validation.
