Final answer:
The waiting period to retake a failed written examination typically increases after each failed attempt. Beginning with 30 calendar days after the first failed attempt, it may extend to longer periods such as 60 or 90 days for subsequent failures, depending on the specific exam's policies.
Step-by-step explanation:
The specific waiting periods before retaking a failed written examination can vary based on the type of exam and the administering body's policies. Generally, for many examinations such as professional certifications, licensing exams, or other standardized tests, there are defined waiting periods after each unsuccessful attempt. For instance, on the first attempt, the waiting period might be 30 calendar days. If the examination is failed a second time, the waiting period may increase to 60 calendar days. Upon failing a third time, the waiting period could extend to 90 calendar days or more.
It is important to note that these periods are meant to give candidates ample time to prepare and improve before trying again. Additionally, the number of retakes may be limited, and fees may apply for each attempt.