Need help in passing data from one form to another

Need help in passing data from one form to another

I have two forms: New_Interns and Intern_Updates. Both forms have the field "Questionnaire_Complete" with values of Yes or No. I wanted to have my interns access the form, "Intern Updates" and complete that question "Questionnaire_Complete" with a Yes value when they have completed that exercise and then pass that value into the report generated from the New_Intern Form. Not sure how to get that done...Any help would be greatly appreciated :)