Hello! I can understand why you might be fixated on the ReVera background check process, but it's just a standard procedure for many schools and usually doesn't raise any issues for applicants who have been truthful in their applications. To answer your specific questions:
1. If rest of your application is authentic, leaving off two previous summers from your internship history is unlikely to be a major issue, especially if they were not relevant to the degree. However, if the school decides to verify your employment history, and discover the discrepancy, they will most likely ask for an explanation. In such a case, it's best to be honest and explain that you made a mistake while filling out the application.
2. Similar to the first question, slight discrepancies in your estimated earnings are unlikely to be a major issue, as long as they are not significant. If there are any discrepancies, it's best to explain the situation and provide any supporting documents or information that may be necessary.
In general, if you do get asked about discrepancies, it's better to come clean and explain the situation rather than to try to hide or cover up the mistake. Admissions committees understand that people make mistakes, and they are usually more concerned with integrity and honesty than with minor discrepancies in applications.
I hope this helps.
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