Certified Clinical Research Associate (CCRA) Practice Exam 2025 – All-in-One Guide to Master Your Certification!

In clinical research, labor costs refer to the expenses associated with the personnel involved in conducting the study. Clinical Research Assistants or Associates (CRAs) are essential team members who perform various tasks necessary for the successful completion of clinical trials, such as participant recruitment, data collection, and compliance with regulatory requirements. Their salaries and associated labor-related expenses are categorized as direct labor costs because they directly contribute to the execution of the research activities.

The other choices represent different types of costs. Office supplies pertain to operational overhead but do not specifically reflect the cost of labor. Trial marketing expenses are related to promoting the clinical trial, which is also not a labor cost. Insurance premiums are necessary for covering risk but are not tied to the workforce's direct labor in the research context. Thus, the costs incurred for personnel like Clinical Research Assistants or Associates are the quintessential example of labor costs in clinical research.