Final answer:
The timing for retesting after a failed exam is dependent on the policies of the educational institution or the rules set by the course instructor. Students need to consult their teacher or institution's guidelines to understand when they can retake a test, what criteria they must meet before doing so, and if there are any specific deadlines or timeframes.
Step-by-step explanation:
The question, 'When can the retest of a failed item be completed?' refers to the policies or criteria regarding retaking a test or examination after an initial failure. The specifics of when a retest can be completed vary widely depending on the institution's policies, the educational level (e.g., middle school, high school, college), and sometimes the particular course or subject. Generally, there will be guidelines set by the educational institution or the instructor.
For example, in some cases, a retest may be allowed after a certain period has passed, giving the student time to study and better prepare. There could also be a stipulation that remedial instruction is completed first, or that a retest must be taken within a certain timeframe following the initial test. It's also common for there to be a different version of the test for retests to ensure an equal level of difficulty.
It's important for students to check with their teacher or institution's policy on retesting to understand the criteria, such as the timeframe for retesting and any requirements they must meet before taking a retest. Each instructor or institution will have specific rules on this matter, so direct communication is the most reliable way of getting accurate information.