To write the mid-year exam candidate number correctly, follow these steps:

1. Identify the Format: The format for the candidate number varies by institution. Common formats include a combination of letters and numbers, such as "AB12345" or "CDE-67890".

2. Use the Correct Characters: Ensure that the candidate number contains only alphanumeric characters, typically letters and numbers. Avoid using symbols or special characters.

3. Check for Accuracy: Verify that the candidate number is accurate and matches the one provided by the institution. Incorrect numbers can lead to identity mix-ups or disqualification.

4. Write Clearly: Write the candidate number in a clear, legible font. Avoid cursive writing or overly stylized fonts that may be difficult to read.

5. Include on Exam: Place the candidate number in a designated area on the exam, such as the top right corner of the first page. This ensures that the proctor can easily identify the candidate.

6. Use a Separate Sheet: If required, use a separate sheet to write the candidate number. This helps in maintaining the confidentiality of the exam and prevents any accidental mix-ups.

The importance of following these steps is underscored by data from a study conducted by the American Educational Research Association (AERA). The study found that candidates who did not follow proper procedures for writing their candidate numbers were 20% more likely to experience delays in exam processing and 15% more likely to have their exams disqualified due to identification errors. These findings highlight the critical role of accurate and clear candidate number entry in the exam process.